S/D

Staff Days

S9

The S9 Diameter interface includes Rx, Gx, and Gxx messages, but when these messages are used between a visited PCRF and the home PCRF, the interfaces are collectively referred to as S9. Defined by 3GPP 29.215 as the interface between a visited PCRF and a home PCRF. There is no difference in processing of Rx over S9 versus. Rx not over S9. The S9 interface is binding capable for Gx and Gxx only. Rx over S9 is binding dependent.

SA

Security Administration

Service Action. Indicates what service-specific behaviors to execute when processing a digit string.

SAA

Server Assignment Answer (Diameter Cx)

SAAL

Signaling ATM Adaptation Layer

SAC

Service Access Code

SAE

Service Action Execution

SAF

Service Availability Forum™

An industry consortium focused on Software Architectures related to highly available systems. The forum is defining architectures and open interface specifications and promoting adoption of the specifications among the Telecommunications Equipment Manufacturers (TEMs). The SAF architecture includes a middleware layer that supports high-availability. The intent is to create a set of reusable and portable software building blocks that supplement the hardware building blocks of ATCA to create a complete framework for telecommunications equipment development. The goal of the framework is to enable a quicker time to market development cycle for high-availability telecommunications products.

SAM

Subsequent Address Message

SAMS

Sentinel Alarm Management System

SAN

Storage Area Network

A group of networked devices such as Controllers and switches, comprising a storage system.

SANE

Secure Access to Network Elements

Verizon Wireless's central authentication and authorization system for network elements. It provides single-sign-on capability to network elements, for user of the SANE GUI client, and it allows network element vendors to use open-source, openprotocol methodologies to integrate clients in the Verizon Wireless security infrastructure.

SAP

Service Access Point

Service Application Office

Service Application Platform

Shelf Alarm Panel

Special Applications Procedures

SAPC

Secondary Adjacent Point Code

SAR

Segmentation and Reassembly

Server Assignment Request (Diameter Cx)

SAS

Serial-attached SCSI. The physical connection used among Controller Enclosures and Disk Enclosures.

Storage Access Services

SAT

Supervisory Audio Tone

SAV

Sender authentication validation

SB

Stop Bits

SBC

Session Border Controller. Device used in some VoIP networks to exert control over the signaling and usually also the media streams involved in setting up, conducting, and tearing down calls.

Single-Board Computer

SBD

System Buffer Dumper

SBDB

Session Binding Database

SBR

Session Binding Repository. A highly available, distributed database for storing Diameter session binding data.

Subsystem Backup Routing

SBR(b)

SBR(binding). SBR - subscriber binding database

SBR(s)

SBR(session). SBR - session database

SBR(u)

SBR(universal). SBR - universal database

Sbus

Sun Bus

SC

Site Collector

System Controller

Scaling

The ability to extend and reduce resources granted to a virtual network function (VNF) dynamically. VNFs can be scaled vertically (up/down) and horizontally (in/ out).

SCAN

A network that carries traffic within channelized bearers of predefined sizes. Examples include Public Switched Telephone Networks (PSTNs) and Public Land Mobile Networks (PLMNs). Examples of signaling protocols used in SCN include Q. 931, SS7 MTP Level 3 and SS7 Application/User parts.

SCB

Session Control Block

Storage Control Block

SCC

Serial Communications Control

Switching Control Centers

SCC AS

Service Centralization and Continuity Application Server

SCCP

Signaling Connection Control Part

The signaling connection control part with additional functions for the Message Transfer Part (MTP) in SS7 signaling. Messages can be transmitted between arbitrary nodes in the signaling network using a connection-oriented or connectionless approach.

SCCPCNV

SCCP Conversion

A feature that allow the system to convert MTP-routed SCCP messages from ANSI to ITU format and to convert ITU formatted messages to ANSI.

SCCP Management (SCMG)

The portion of the SCCP subsystem that performs network management functions for the SCCP subsystem such as, rerouting signaling traffic when network failures or congestion conditions occur. MTP network management informs SCCP of any changes in point code routing status. Changes in subsystem status are updated by using the subsystem allowed and subsystem prohibited procedures of SCCP management. SCCP management updates the status of point codes and subsystems. Also SCCP management broadcasts subsystem allowed and prohibited messages to concerned nodes.

SCCP Routing Control

The portion of the SCCP subsystem that determines where SCCP messages are routed.

SCCP Service Selector

A utility that allows services such as G-Port, A-Port, and IS-41 GSM Migration services to be assigned to the mnp parameter.

SCCS

Switching Control Center System

SCC/VCC AS

Service Centralization and Voice Call Continuity Application Server—IMS application server providing voice call continuity and service centralization for mobile UEs. The SCC AS provides an IMS-based mechanism for service delivery and enables service continuity for media sessions with a mobile UE including support for access transfer with SRVCC (Single Radio Voice Call Continuity) and eSRVCC (enhanced SRVCC) arrangements.

SCDR

SS.8 CDR format

SCE

Service Creation Environment

Service Control Engine. A deep-packet inspection product.

SCF

Service Control Function

SCIM

Service Capability Interaction Manager

SCM

System Configuration Manager

System Configuration Matrix

SCMG

SCCP Management

SCMG manages the status of subsystems and SCCP-capable signaling points (SPs). It maintains the status of remote SCCP SPs and that of local subsystems.

S-CMP

System Configuration Management Platform

The S-CMP servers configure System tier objects. System tier objects are MPE and MRA devices.

SCN

Switched Circuit Network

A network that carries traffic within channelized bearers of predefined sizes. Examples include Public Switched Telephone Networks (PSTNs) and Public Land Mobile Networks (PLMNs). Examples of signaling protocols used in SCN include Q. 931, SS7 MTP Level 3, and SS7 Application/User parts.

SCOC

SCCP Connection-Oriented Control

SCON

Signaling Congested

SCP

Secure Copy

Service Control Point. SCPs are network intelligence centers where databases or call processing information is stored. The primary function of SCPs is to respond to queries from other SPs by retrieving the requested information from the appropriate database, and sending it back to the originator of the request.

SCPMS

Service Control Point Management System

SCR

Service-Configuration Request

SCRC

SCCP Routing Control

Screen Set

A gateway screening table containing a list of rules, or screening references. The screening references indicate the screening action that is to be performed on a message in a specific linkset.

Screening Reference

The name of each entry in the gateway screening tables. Combined with the next screening function identifier (NSFI), it uniquely defines a screening table. This field is used with all screening functions except the screen set screening function.

SCRN

Screen Set Name

SCRSET

Screen Set

S-CSCF

Serving–Call Session Control Function

Provides user and service authentication and authorization, client registration, SIProuting capabilities, service integration, data management, FW/NAT traversal, multinetwork integration and an interface to third-party applications.

SCS

Service Control and Screening

SCSI

Small Computer System Interface

There are two independent Small Computer System Interface (SCSI) buses, one to the fixed disks on TDM cards and the other to the shared administration SCSI bus that runs on the backplane between TDMs and the MDAL card. Each SCSI bus has a block of memory that allows transfers from memory to occur without delaying the application processor.

SCSI Bus

Small Computer System Interface Bus

SCTP

Stream Control Transmission Protocol

An IETF transport layer protocol, similar to TCP, that sends a message in one operation.

The transport layer for all standard IETF-SIGTRAN protocols.

SCTP is a reliable transport protocol that operates on top of a connectionless packet network such as IP and is functionally equivalent to TCP. It establishes a connection between two endpoints (called an association; in TCP, these are sockets) for transmission of user messages.

SCTP Association

A protocol relationship between SCTP endpoints composed of the two SCTP endpoints and protocol state information, including Verification Tags and the currently active set of Transmission Sequence Numbers (TSNs), and so on. An association can be uniquely identified by the transport addresses used by the endpoints in the association. Two SCTP endpoints MUST NOT have more than one SCTP association between them at any given time.

SCTP Endpoint

The logical sender/receiver of SCTP packets. On a multi-homed host, an SCTP endpoint is represented to its peers as a combination of a set of eligible destination transport addresses to which SCTP packets can be sent, and a set of eligible source transport addresses from which SCTP packets can be received. All transport addresses used by an SCTP endpoint must use the same port number, but can use multiple IP addresses. A transport address used by an SCTP endpoint must not be used by another SCTP endpoint. In other words, a transport address is unique to an SCTP endpoint.

SCTP Packet

The unit of data delivery across the interface between SCTP and the connectionless packet network (for example, IP). An SCTP packet includes the common SCTP header, possible SCTP control chunks, and user data encapsulated within SCTP DATA chunks.

SDA

Sequential Disk Access

SDLC

Signaling-Data Link-Connection

System Development Life Cycle

SDM

State Decision Manager

Subscriber Data Management

See OCSDM.

SDO

Subscriber Data Object

Subscription Data Object. An SDO consists of subscription state information and a collection of registers for storing entities. An individual SDO applies to one subscriber. A pool SDO applies to a group of subscribers.

SDP

Session Description Protocol

SDRAM

Synchronous Dynamic Random Access Memory

SDS

Subscriber Database Server. Subscriber Database Server (SDS) provides the central provisioning of the Full- Address Based Resolution (FABR) data. The SDS, which is deployed geo-redundantly at a Primary and Disaster recovery site, connects with the Query Server and the Data Processor System Operations, Administration, and Maintenance (DP SOAM) servers at each Diameter Signaling Router (DSR) site or a standalone DP site to replicate and recover provisioned data to the associated components.

Subscriber Data Server. Provides new ways of accessing, extracting, and finding value from subscriber data, and thus enables operators to leverage the wealth of subscriber information previously fragmented all over their network. By simplifying the management of subscriber data and profiling customer behavior, the Subscriber Data Server allows carriers to exploit real-time data, deliver monetized personalized services, and even bind to third part services easily.

System Debug Services

SDSC

System Debug Services Controller

SDT

System Data

SDU

Service Data Unit

SDV

Software Design Verification

SE

South East

SE-HSL

Synchronous E1 High Speed Link

Format for E1 high-speed signaling links where time-slot 0 is used for framing and error control. The remainder of bandwidth, equivalent to 31 channels of 64Kbps data, is used as a single data link yielding a total capacity of 1.984 Mbps. Also known as Unchannelized E1.

SEAC

Signaling Engineering and Administration Center

SEAS

Signaling Engineering and Administration System

An interface defined by Bellcore and used by the Regional Bell Operating Companies (RBOCs), as well as other Bellcore Client Companies (BCCs), to remotely administer and monitor the signaling points in their network from a central location.

SEC

Subscriber Entity Configuration

Secondary GUI

A label above the menu on the TekCore user interface to show whether the user is logged in to the Primary or Secondary GUI. The Primary GUI label indicates that the user is logged in to the Provisioning Server at the Data Center. The Secondary GUI label indicates that the user is logged in to a TekCore application at a switching center and that the user has read-only access.

Secondary Point Code (SPC)

See SPC

Secondary State (SST)

See SST

Secure Access to Network Elements

See SANE

Secure Shell

See SSH

Security Log

The security log is a circular file, located on each MASP, containing a record of each command entered on a EAGLE terminal, the name (user ID) of the person entering the command, the date and time the command was entered, and the terminal port that the command was entered on. This record can investigate unauthorized activities that may take place on the EAGLE, or when problems occur, this record can examine the commands that were entered before the problem occurred to check if one or more of those commands caused the problem.

Select Expression

An expression that refers to a part of the SIP message, or to some information related to the SIP message; for example, the user name of the URI in the From header, or the incoming source IP address.

Self Identification of the EAGLE

The point code that identifies the EAGLE to the other signaling points in the network.

Self Point Code

The True, Secondary, or Capability Point Code of the EAGLE.

SENS

Scaleable Enhanced Network Stack

Sentry

A daemon process that monitors application processes on a per-host basis. The Sentry daemon can restart failed processes or ignore failed processes depending on Sentry’s user-assigned mode.

SEP

Signaling End Point

A node in an SS7 network that originates or terminates signaling messages. One example is a central office switch.

SER

SIP Message Processes

SERVDI

Support ELAP Reload via Database Image

Server

Any computer that runs TPD. Could be a Rack Mount Server or a Blade Server. In Policy Management, a computer running Policy Management software, or a computer providing data to a Policy Management system.

Server Group

A collection of MPs that host a distributed SS7/EAGLE application. A server group provides a logical grouping of physical components as well as a functional assignment. A server group provides the means for other logical elements to be mapped to particular MPs. A server group resides within a network element but cannot span network elements. A MP can be a member of one server group.

Server Group Identifier

See SGI

Service

Any EAGLE behavior that uses NPP.

Service Action Handler

Service-specific function associated with an NPP Service Action.

Service Availability Forum

See SAF

Service Broker

Provides service aggregation and orchestration in both wireless and wireline networks using the Customized Application of Mobile network Enhanced Logic (CAMEL) protocol.

Service Broker User Interface

The central point of user interaction with the application. The user interface is a Web-based graphical user interface (GUI) that enables remote user access over the network to the application and functions.

Service Broker Software Platform

The software platform that the Service Broker runs on.

Service Control Point (SCP)

See SCP

Service Information Field

See SIF

Service Information Octet (SIO)

See SIO

Service Module Card

DSM, E5-SM4G, or E5-SM8G-B card that contains the Real Time Database (RTDB) downloaded from an EPAP or ELAP system.

Service Nature of Address Indicator

See SNAI

Service Orchestration

The combination of Response Aggregation and Service Interaction.

Service Portability

See S-Port

Service Rule Set

A collection of rules associated with a service.

Service Specific Connection Oriented Protocol (SSCOP)

See SSCOP

Service Specific Coordination Function (SSCF)

See SSCF

Service Specific Convergence Sublayer (SSCS)

See SSCS

Session

A concept that is internal to Service Broker. Service Broker correlates every Event received, Message sent, and Response sent, to a specific session. When a service is triggered at an SSF, it sends an Initial Trigger Event to Service Broker. The receipt of this Initial Trigger is an External Event that begins a session at Service Broker. A Diameter session between the MPE and an external device (for example, a Gx, Gxa, Gx-Lite or Rx session). Subscribers can maintain multiple sessions at any given time.

Session Binding Repository

See SBR

Session Context

This is any data that CPA receives from DRL when a message is received that needs to be handed back to DRL when CPA requests DRL to forward the message. This data needs to be remembered across the asynchronous interface to SBR.

Session Database

Policy SBR database that holds session information that is used for routing in-session messages. A given session record is accessible on every Policy SBR server on a mated pair of P-DRA DSRs. The P-DRA application always maintains session records for binding capable sessions (Gx, Gxx, and the S9 versions of Gx and Gxx) and binding dependent sessions for which Topology Hiding is in effect.

Session ID

Each Diameter session includes a Session-Id in every Diameter message that is part of the session. The Diameter Session Id is used to look up session information in the session database.

Session Initiation Event

When a service is triggered at an SSF, it sends an Initial Trigger Event to Service Broker. A Session Initiation Event is the receipt of this Initial Trigger that begins a Session at Service Broker.

SF

Super Frame

SFF

A small form factor (SFF) is a computer form factor designed to minimize the volume and footprint of a desktop computer. For comparison purposes, the size of an SFF case is usually measured in litres. SFFs are available in a variety of sizes and shapes, including shoeboxes, cubes, and book-sized PCs.

SFTP

SSH File Transfer Protocol (sometimes also called Secure File Transfer Protocol)

A client-server protocol that allows a user on one computer to transfer files to and from another computer over a TCP/IP network over any reliable data stream. It is typically used with version two of the SSH protocol.

SG

Secure Gateway

Signaling Gateway. A network element that receives/sends SCN native signaling at the edge of the IP network. The SG function may relay, translate or terminate SS7 signaling in an SS7- Internet Gateway. The SG function may also be coresident with the MG function to process SCN signaling associated with line or trunk terminations controlled by the MG (for example, signaling backhaul). A Signaling Gateway could be modeled as one or more Signaling Gateway Processes, which are located at the border of the SS7 and IP networks. Where an SG contains more than one SGP, the SG is a logical entity and the contained SGPs are assumed to be coordinated into a single management view to the SS7 network and to the supported Application Servers.

SGI

Service Group Identifier

User-defined name for a group of Service Broker servers. Normally the SGI name refers to the active and standby units of a redundant server pair.

SGP

Signaling Gateway Process

A process instance of a Signaling Gateway. It serves as an active, backup, loadsharing, or broadcast process of a Signaling Gateway [RFC 4666].

SGSN

Serving GPRS Support Node

SGW

Serving Gateway

Sh-Interface

The interface method of communication between the Application Server (AS) and the Home Subscriber Server (HSS).

SHLR

Smart HLR

ShM

Shelf Manager

The shelf manager interfaces inside the shelf with controllers, chiefly over the Intelligent Platform Management Bus (IPMB). The controllers are collectively responsible for the local management of FRUs (boards, fan trays, or power entry modules, for example). Shelf managers support the RMCP interface so that PMAC can interact with the shelf.

ShMC

Shelf Manager Controller

An IPM (Intelligent Platform Management) controller at IPMB (Intelligent Platform Management Bus) address 20h. The ShMC is exposed only by the active Shelf Manager and is subject to switchover.

ShMM

Shelf Management Mezzanine or Shelf Management Module

The ShMM, in conjunction with a corresponding carrier board, provides the required hardware that is needed to operate the Shelf Manager (ShM).

Short Code

A number that has meaning only within a particular phone company's network.

Shadow Timeslot

Applies to Channel Bridging. The time slots located on the Paired port that correspond to time slots on the Parent port that were terminated on the EAGLE, for example, timeslot 1 on the Parent port was assigned to a signaling link, thus timeslot 1 on the Paired port will be a shadow timeslot. These time slots do not contain any signaling.

Shared Resources

The T5100 platform contains certain entities that all components utilize. These common entities are shared resources, and they are managed by PMAC. The Ethernet switch blades are an example of a shared resource.

Shelf or SHLF

Shelf

A modular unit that contains the cards that make up the EAGLE. The EAGLE uses two types of shelves, the control shelf, and the extension shelf. The control shelf contains the components of the Maintenance and Administration Subsystem (MAS), and up to eight additional Link Interface Modules (LIMs). The extension shelf provides locations for two High Speed Multiplexer (HMUX) cards and also 16 card locations for any combination of Link Interface Modules (LIMs), and Service Modules.

Short Message Service

See SMS

SI

Service Indicator

SIBs

Service Information Blocks

SIF

Service Information Field

MTP Service Information Field is the payload field of an SS7 MSU header. The first byte of the SIF is the start of the MTP3 routing label. For MTP3-variant networks, the maximum SIF size is 272 bytes. For MTP3b-variant networks, the maximum SIF size is 4095 bytes.

SIFB

Switched IMT Fabric Board

SIG

Signature service

Personalized SMS signature service. This service is provided by the Mobile Messaging XS-SIG component.

Signal Transfer Point (STP)

See STP

Signaling Connection Control Part (SCCP)

See SCCP

Signaling End Point

See SEP

Signaling Engineering and Administration System (SEAS)

See SEAS

Signaling Gateway

See SG

Signaling Gateway Process

See SGP

Signaling Link

The transmission path connecting the EAGLE to other signaling points in the network and providing access to ANSI SS7 and ITU SS7 network elements. The signaling link is connected to the EAGLE at the link interface module (LIM).

Signaling Point

See SP

Signaling Process

A process instance that uses SUA to communicate with other signaling processes. An ASP, a SGP and an IPSP are all signaling processes.

Signaling Network Management (SNM)

See SNM

Signaling System #7 (SS7)

See SS7

Signaling Transport Card (STC)

See STC

Sigtran or SIGTRAN

Signaling Transport

The name given to an IETF working group that produced specifications for a family of protocols that provide reliable datagram service and user layer adaptations for SS7 and ISDN communications protocols. The most significant protocol defined by the SIGTRAN group was the Stream Control Transmission Protocol (SCTP), which is used to carry PSTN signalling over IP.

The SIGTRAN group was significantly influenced by telecommunications engineers intent on using the new protocols for adapting VoIP networks to the PSTN with special regard to signaling applications. Recently, SCTP is finding applications beyond its original purpose wherever reliable datagram service is desired.

SIH

System Information Handlers

SIM

Subscriber Identity Module

An ID card the size of a credit card for GSM network subscribers, and is typically referred to as a chip card or smartcard.

SIMM

Single Inline Memory Module

Single IMSI Multiple MSISDN. Roamware solution that allows a single SIM card to use a local number when roaming, in addition to the home number.

Simple Network Management Protocol

See SNMP.

Simplex Mode

Having only an Active OAM server blade.

SIO

Service Information Octet

The network indicator code (NIC), priority (PRI), and service indicator (SI) in the SIO field in the message signaling unit (MSU). This information identifies the type of MSU (ISUP, TCAP, and so forth) that is allowed in the network where the EAGLE is located.

SIOT

Shared_Interoffice_Trunk AIN trigger

Simple Network Management Protocol (SNMP)

See SNMP

SINAP

Stratus Intelligent Network Applications Platform

SIP

Session Initiation Protocol

A peer-to-peer protocol used for voice and video communications.

SIPO

Status Indicator - Processor Outage

SIP Server

The SIP processing component of TekCore. The terms SER, SIP Server, and MP may be used interchangeably.

SIR

Service Interaction Rule

SIT

System Integration Test

Site

All policy components at a single location, inclunding a single CMP cluster, a single MRA cluster, and one or more MPE clusters, interconnected by LAN links only (no WAN interconnects).

SK

South Korea

Service Key

SLB

See OCSLB

SLC

Signaling Link Code

SLF

Subscription Locator Function

SLF4J

Simple Logging Facade for Java

The facade interface for log back functionality.

SLIC

Service and Link Interface Card

A single-slot, multi-use card with the same functionality as the E5-ENET-B card running the IPSG application.

SLS

Signaling Link Selector

SLSCI

SLS Conversion Indicator

SLSOCB

The Other CIC (Circuit Identification Code) Bit Used feature is one of two methods provided as ITU SLS enhancements for distributing the load across links in a combined and single linkset. The Other CIC Bit Used feature lets the system derive the LSB (Least Significant Bit) from bits 2 through 4 of the CIC to serve as the three lower bits of the SLS (Signaling Link Selection) and one other bit of the CIC to serve as the MSB (Most Significant Bit) of the SLS. The SLSOCB feature applies only to ITUISUP messages. The other method of distributing the load is rotation of the four bits of the SLS to change the LSB of the SLS.

SLTA

Signaling Link Test Acknowledgment

SLTC

Signaling Link Test Controller

SLTM

Signal Link Test Message

SM

Short Message

Small Computer System Interface (SCSI) Bus

See SCSI

Smart Limit

AT&T service that provides parental control of wireless services.

SMASE

System Management Application Entity

SMDR

Station Detailed Message Recording

SMDS

Switched Multi-megabyte Data Service.

SME

Short Message Entity

SMG

Short Message Gateway

SMH

Signaling Message

SMI

Structure and Identification of Management Information for TCP/IP-based Internet

Systems Management Interface. A specification that is under development by the Service Availability Forum (SAF) to define service events and error reporting by the Application Interface Specification and the Hardware Platform Interface. Also intended to define the SNMP and Web-based interfaces that provide distributed monitoring and control access.

SMOD

Streaming Media On Demand

Smoothed EMR

The Smoothed Egress Message Rate is based on the current EMR and is calculated using an “exponential moving average” algorithm.

SMPP

Short Message Peer-to-Peer Protocol

An open, industry standard protocol that provides a flexible data communications interface for transfer of short message data.

SMS

Short Message Service. A communication service component of the GSM mobile communication system that uses standard communications protocols to exchange short text messages between mobile phone devices. See also GSM.

Shared Metric Service

SMSC

Short Message Service Center

A network element in the mobile telephone network that stores, forwards, converts and delivers SMS messages.

SMSMR

Prepaid Short Message Service.

SMSR

SMS Relay Application

An interface between the MPE and SMSC or other specific SMS web service(s).

SMSREQ or SMS Request Message

A TDMA/CDMA MSC query to a home location register (HLR) for retrieving subscription/location information about a subscriber to deliver a short message.

SMT

Scroll (area) Message Text

SMTP

Simple Mail Transfer Protocol

SN

Service Node

SNA

Subscribes Notification Answer on Sh Interface

SNAI

Service Nature of Address Indicator

An internal G-Port parameter that allows a user to specify how to interpret the signaling connection control part (SCCP) called party address (CdPA) GTA of a LOCREQ/SMSREQ message.

SNM

Signaling Network Management

The set of networking cards and the shared database of dynamic network status information that they collectively maintain.

The messages that maintain MTP status level 3 of SS7.

SNO

Subscription Notification Object

An SNO stores a collection of client subscribe-to-notifications for a subscription.

SNMP

Simple Network Management Protocol

An industry-wide standard protocol used for network management. The SNMP agent maintains data variables that represent aspects of the network. These variables are called managed objects and are stored in a management information base (MIB). The SNMP protocol arranges managed objects into groups.

SNP

Service Numbering Plan

SNR

Subsystem Normal Routing

Subscriber Notification Request on Sh Interface

SO

Signaling OAM

A server that manages a collection of MPs. SO servers are deployed in active/standby pairs.

SOA

Service Order Administration

SOAM

System Operations, Administration, and Maintenance

Site Operations, Administration, and Maintenance

SOAP

Simple Object Access Protocol

SOAP/XML

SOAP protocol requests and responses that are sent containing provisioning request/ responses in XML format.

Socket

A set of APIs and behaviors that are common to both TCP and SCTP. For example, each socket has a send buffer and a receive buffer that are used to implement the sliding window flow control mechanism that the Per Connection MPS Control feature makes use of. For TCP, uni-homed SCTP, and the Tekelec implementation of multihomed SCTP, a socket refers to the IP address and port that identify one end of the connection.

Softswitch

A device in a telephone system that connects calls by means of software.

SOG

Subsystem Out-of-Service Grant

Service Order Gateway

SOIP

SEAS Over IP

SONET

Synchronous Optical Network

SoR

Steering of Roaming

SOR

Support of Optimal Routing

System Out of Service Request

SORP

Socket Option Registration Primitive

Southbound Interface

An interface to an entity that resides lower in the management hierarchy. For example there is a southbound interface from an EAGLE OAM to the application on a particular blade.

SOW

Statement of Work

S-Port

Service Portability

A number portability extension which allows a subscriber to retain the same subscriber number when moving from one network type or service technology to another within the network of a single operator. Service Portability provides different routing number digits for formats that require routing numbers. Service Portability does not affect message flows.

SP

Service Provider

Signaling Point. A set of signaling equipment represented by a unique point code within an SS7 domain.

Spare (Disk)

A disk not in active use, but designated for future use by a Controller to replace a failed disk in a particular Disk Group.

Spare PMAC Server Blade

See PMAC server blade.

Spare Point Code

The EAGLE ITU International/National Spare Point Code feature allows a network operator to use the same Point Codes across two networks (either ITU-I or ITU-N). The feature also enables National and National Spare traffic to be routed over the same linkset. The EAGLE uses the MSU Network Indicator (NI) to differentiate the same point code of one network from the other. In accordance with the SS7 standard, unique Network Indicator values are defined for Point Code types ITU-I, ITU-N, ITUI Spare, and ITU-N Spare.

SPC

Secondary Point Code. The SPC enables the EAGLE to assume more than one point code for SS7 routing. The EAGLE uses the SPC for routing and provisioning as if the SPC were an actual point code of the EAGLE. The EAGLE supports one ANSI true point code and up to seven secondary point codes.

Service Provisioning over COPS (Common Open Policy Service protocol)

Signaling Point Code

Spare Point Code

Stored Program Control

Special Network Management Messages

Messages that include RCT/TFC/UPU.

SPF

Subscriber Provisioning Framework

The Mobile Messaging solution to enable the configuration, control and application of subscriber-specific services. The SPF provides a framework to store and retrieve service-specific data through a variety of provisioning interfaces. The SPF and the FAF communicate over the Internal Service Provisioning Interface (ISPI) for auto blocklist provisioning.

SPI

Spare Parts Inventory

SPID

Service Provider ID

Split Brain

Event where multiple active servers have been detected in the same cluster.

Split Binding

A Split Binding is defined as a situation in which a given subscriber has more than one binding for the same APN. Note: Split bindings is created by addition of more specific PCRF Pool selection criteria. For example: Adding an explicit APN to PCRF Pool mapping when the “-Unrecognized-” APN mapping was previously being used. Adding a more specific PCRF Sub-Pool Selection Rule. Policy DRA prevents Split Bindings by always honoring existing bindings for an IMSI-APN combination. The presence of an existing binding for the IMSI-APN combination overrides the rule-based PCRF Pool selection. Prevention of Split Bindings is necessary to avoid having two PCRFs delivering possibly conflicting rules to one PCEF. Added benefit is avoidance of ambiguity in binding correlation for non-specific binding keys.

Split NPA

Split Number Planning Area

A process that forces two different NPANXXs to reference the same last 4 digits of a 10 digit ported telephone number in the database. When either NPANXX is updated, the 10-digit ported telephone numbers in each NPANXX with the same last 4 digits are updated. When the NPANXX is split, all existing NPANXX data for the NPANXX being split is copied to the new NPANXX.

SPMO

Service Provider Managed Object

SPR

Subscriber Profile Repository

A logical entity that may be a standalone database or integrated into an existing subscriber database such as a Home Subscriber Server (HSS). It includes information such as entitlements, rate plans, and so on.The PCRF and SPR functionality is provided through an ecosystem of partnerships.

SPVC

Soft Permanent Virtual Connection

SQEC

Sbus Quad Ethernet Controller

SQL

Structured Query Language

A special programming language for querying and managing databases.

SR

Screening Reference

SRAM

Static Random Access Memory

SRCT

Signaling Route Set Congestion Test

SRF

Service Resource Function. Provide resources to a call, such as announcements, voice prompting, and voice recognition. An example of a SRF is a Voice Recognition Unit (VRU).

Signaling Relay Function. The SRF determines the HLR of the destination mobile station. If the mobile station is not ported, the original HLR is queried. If the mobile station is ported, the recipient HLR is queried.

SRI

Send Routing Information

Send_Route_Information message

SRM

Subsystem Routing Messages

Signaling Route Management

SRT

Subsystem Routing Status Test

SRV

DNS Server Record

Enables the localization of servers implementing a specific service over a specific transport protocol (for example, SIP over UDP).DNS Server Record.

SRV Record

Service record

A specification of data in the Domain Name System defining the location, that is, the hostname and port number, of servers for specified services.

SS

Subsystem

Supplementary Services

SS7

Signaling System #7

A communications protocol that allows signaling points in a network to send messages to each other so that voice and data connections can be set up between these signaling points. These messages are sent over its own network and not over the revenue producing voice and data paths. The EAGLE is an STP, which is a device that routes these messages through the network.

SS7ANSI or SS7 ANSI

An application used by the LIM cards and the E1/T1 MIM card for the MTP functionality.

SS7 Application

Software that performs a signaling function and that interacts with signaling network peers using either a locally or remotely attached Message Transfer Part 3 protocol.

SS7 Domain

A specific SS7 network address space. It is the combination of a particular SS7 variant (ANSI/ITU/China) and network indicator (national/international and spare/nonspare).

SS7GX25

X.25/SS7 Gateway

An application used by the LIM cards for the X.25/SS7 gateway feature. This GPL does not support 24-bit ITU-N point codes.

SS7IPGW

SS7 IP Gateway

An application used by the DCM/SSEDCM card for IP point-to-multipoint capability within an ANSI network.

SS7ML

An application used on the Multi-Port LIM (MPL or MPLT) for SS7 signaling links and on the E1/T1 MIM for E1 and T1 signaling links.

SS7oIP or SS7-over-IP

Traditional SS7 signals from a telephone company switch are transmitted to an SG, which wraps the signals in an IP packet without translation for transmission over IP to either the next SG or to a media gateway controller (MGC), other Service Control Points (SCP), and mobile switching centers (MSCs).

SSA

Subsystem Allowed

SSC

Subsystem Congested

SSCF

Service Specific Coordination Function

The primary task of the SSCF (Service Specific Coordination Function) is to map the services provided by the lower layers of the SAAL to the needs of a specific higher layer user. For the ATM high-speed signaling link, the higher layer user is the MTP-3 protocol.

SSCOP

Service Specific Connection Oriented Protocol.

The primary task of the SSCOP (Service Specific Connection Oriented Protocol) is to provide assured data delivery between AAL connection endpoints. Breaking the SSCS into 2 sublayers allows a common connection oriented protocol with error recovery (the SSCOP) to provide a generic reliable data transfer service for different AAL interfaces defined by different SSCF layers.

SSCS

Service Specific Convergence Sublayer.

The SSCOP is 1 of 2 parts (the other being the SSCF) of the Service Specific part of the SAAL layer (also known as the SSCS, the Service Specific Convergence Sublayer of the SAAL). The other part of the SAAL Layer is the CPCS.

SSEDCM

Single Slot Enhanced Data Communications Module

SSF

Service Switching Function

SSG

Switching Solutions Group

SSH

Secure Shell

A protocol for secure remote login and other network services over an insecure network. SSH encrypts and authenticates all EAGLE IPUI and MCP traffic, incoming and outgoing (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other network-level attacks.

SSI

Service Subscription Information

The Mobile Messaging SSI can be queried to determine the applicable personalized subscriber services of the originator and recipient of the message.

SSIc

Service Subscription Information Client

SSID

Service Set Identifier

Used to uniquely identify a wireless LAN.

SSIs

Service Subscription Information Server

SSL

Secure Socket Layer (SSL) is an industry standard protocol for clients needing to establish secure (TCP-based) SSL-enabled network connections

SSM

Shared Storage Manager

The capabilities in PMAC that configure shared storage such as a SAN.

SSN

SS7 Subsystem Number. The subsystem number of a given point code. The subsystem number identifies the SCP application that should receive the message, or the subsystem number of the destination point code to be assigned to the LNP subsystem of the EAGLE.

Subsystem Number. A value of the routing indicator portion of the global title translation data commands indicating that no further global title translation is required for the specified entry. Used to update the CdPA.

SSO

Single Sign-On

SSP

Subsystem Prohibited network management message

Subsystem Prohibited SCCP (SCMG) management message. (CER)

Service Switching Point (SS7 Network)

Signal Switching Point. Signal Switching Points are switches that originate, terminate, or tandem calls. An SSP sends signaling messages to other SSPs to setup, manage, and release voice circuits required to complete a call.

SSR

SIP Signaling Router

Function responsible for querying a redirection server and proxying requests to other SSR servers, redirect servers, SSR Service Points, and Gateways. It helps in evolving a Flat NGN network into a hierarchical network.

SSR-RM

SIP Signaling Router – Routing Module

SSR-SM

SIP Signaling Router – Service Module

SSR-SP

SIP Signaling Router – Service Point. Also called a softswitch.

SSRC

Synchronization Source

SSSTC

Single Slot Sentinel Transport Card

SST

Secondary State. The secondary state of the specified entity.

Subsystem Status Test

Subsystem Status Test network management message.

Subsystem Status Test SCCP (SCMG) management message. (CER)

SSTC

SCCP SS Status Test Controller

SSU

Status Signaling Unit

ST-HSL-A

Synchronous T1 High Speed Link

The 192 data bits of a framed T1 are combined to form a single unchannelized highspeed data stream that uses the SS7 protocol for messaging. Also known as Unchannelized T1.

STA

Session-Termination-Answer

Session Termination Answer (Rx Diameter command)

Stack Event

Messages that are used for communication to and from the Communication Agent (ComAgent).

Standalone Routing Entity

An IMSI, MSISDN, or ExternalIdentifier routing entity that is not assigned to a Subscriber (group of related IMSI, MSISDN, and Account ID values).

Standalone Server

A server that is not managed by PMAC, such as a Network OAM.

Static IP Address

A static IP address is a number (in dotted decimal notation format) that PMAC assigns to the shelf manager and the switch on the base network. The PMAC GUI also provides user interfaces for application users to define static IP addresses on the fabric network.

STC

Sentinel Transport Card

Signaling Transport Card. The Signaling Transport Card (STC) is a member of the DCM card family with an “eroute” generic program load (GPL) installed. The STCs provide the IP interface between the LIM cards on the IMT bus and the Signaling Extended Services Platform (ESP) subassembly. The STC is used for sending MSU data to the ESP/IMF.

STH

System Trouble Handler

STM

Signaling Traffic Management

STN-SR

Session Transfer Number for Single Radio

STP

Signal Transfer Point or Signaling Transfer Point. The STP is a special high-speed switch for signaling messages in SS7 networks. The STP routes core INAP communication between the Service Switching Point (SSP) and the Service Control Point (SCP) over the network.

Spanning Tree Protocol

STPI

Signaling Transfer Point International

STR

Send_to_Resource AIN message

Session Termination Request (Rx Diameter command)

Stream

In SCTP, refers to a sequence of user messages that are to be delivered to the upperlayer protocol in order with respect to other messages within the same stream. This is in contrast to its usage in TCP, where it refers to a sequence of bytes (in this document a byte is assumed to be eight bits). The stream is a unidirectional logical channel established from one SCTP endpoint to another associated SCTP endpoint. Note: The relationship between stream numbers in opposite directions is strictly a matter of how the applications use them. It is the responsibility of the SCTP user to create and manage these correlations.

Stream Sequence Number

A 16-bit sequence number used internally by SCTP to assure sequenced delivery of the user messages within a given stream. One stream sequence number is attached to each user message.

Session-Termination-Request

strftime() function

A standard UNIX notation for formatting time and date.

STUN

Simple Traversal of UDP through NATs.

STV

Statistics Viewer

Collects statistical data about Tekelec Mobile Messaging components and displays it in the Manager.

SUA

SCCP User Adaptation Layer

A protocol for the transport of any SCCP-User signaling over IP using the SCTP. The protocol is designed to be modular and symmetric, to allow it to work in diverse architectures.

Subscriber

Group of related IMSI, MSISDN, or ExternalIdentifier routing entities along with an optional Account ID.

Subscriber Database

Contains profiles of subscribers, including information such as the services for which subscribers have paid and are thus entitled to receive.

Subscriber Data Management

See SDM

Subscriber Database Server

See SDS

Subscriber Key

One of several possible keys that can be used to uniquely identify a subscriber. Subscriber Keys are delivered in the Subscriber-Id Diameter AVP of a CCR-I message. One of the Subscriber Keys is designated as an Anchor Key.

Subscriber Profile Repository

See SPR

Subscriber Property

A persistent name-value that may be associated with subscriber in the MSR.

Subsystem Application

The name of the feature assigned to a particular subsystem of the EAGLE.

Subsystem Number

See SSN

SUERM

Signal Unit Error Rate Monitor

Suggested PCRF

PCRF used for the binding unless an error causes alternate routing. Avoids the need to update the binding if the suggested PCRF successfully answers the CCR-I.

SUI

Serial User Interface

SUM

Signal Unit Manager (IMT)

SUS

Suspend Message

Suspect Binding

A Policy DRA IMSI Anchor Key binding record is considered to be “suspect” if the last attempt to route a CCR-I message to the bound PCRF failed with a 3002 Error Code response. The concept of Suspect Binding allows bindings to be removed after a short period of time (called the Suspect Binding Interval) from a PCRF that has become unreachable.

The suspect binding mechanism allows a binding to be removed if the PCRF that the subscriber is bound to becomes unreachable. A binding is marked suspect if after being successfully established, a subsequent binding capable session initiation request for that same binding receives a 3002 response (unable to route) from the routing layer. If another binding capable session initiation request for the binding arrives after the suspect binding interval and also receives a 3002 response, the suspect binding is removed, allowing the next request to be routed to another PCRF.

SUT

System Under Test

SV

Software Version

Subscription Version

SVC

Switched Virtual Circuit

A temporary virtual circuit that is set up and used only as long as data is being transmitted. Once the communication between the two hosts is complete, the SVC disappears. In contrast, a permanent virtual circuit (PVC) remains available at all times.

SVCA

Automatic Switched Virtual Circuit

A connection to an X.25 node established by the EAGLE as soon as the LIM initializes.

SVCR

Remote Switched Virtual Circuit

A connection to an X.25 node established by the far end X.25 user.

SW

Software

Switch

Switch

A device that connects multiple network segments along the data link layer (layer-2 and possibly layer-3).

Switched Virtual Circuit (SVC)

See SVC

SWOPS

Software Operations

SWP

Swap

Synchronous E1 High Speed Link (SE-HSL)

See SE-HSL

SYSADM

System Administration

syscheck

A self-diagnostic system health check utility that generates alarms.

SYSIO

System Input/Output

System Local Time

Local time of an MPE system that is calculated as an offset from UTC for the location of the MPE.

System Local Time Context

Indicates that system local time is to be applied to policy rules.

System Manager

Server with hardware management software that manages the remaining servers (System OAMs and MPs) in a network element. The terms PMAC and system manager are used synonymously in the online help documentation.

Signaling OAM

See SO