Acronyms
The following table provides information about the acronyms and the terminology used in the document.
Table - Acronyms
| Acronym | Definition |
|---|---|
| CAS | Customer Access Support |
| GSM | Global System for Mobile Communications |
| GTA | Global Title Address |
| HLR | Home Location Register |
| MNP | Mobile Number Portability |
| MNPCRP | MNP Circular Route Prevention |
| MSISDN | Mobile Station international ISDN number |
| MSRN | Mobile Station Roaming Number |
| MSU | Message Signal Unit |
| RTDB | Real Time Database |
| SIM | Subscriber Identity Module |
| SMSC | Short Message Service Center |
| SR | Service Request |
| SRF | Signaling Relay Function |