You configure this surrogate registration SPL feature on the realm-config or sip-interface facing the trunk. Configure the random contact exclusion on the ingress realm-config for KDDI environments only.

1. Access the realm-config configuration element.

   ORACLE# configure terminal
   ORACLE(configure)# media-manager
   ORACLE(media-manager)# realm-config
   ORACLE(realm-config)# 

2. Select the realm-config object to edit.

   ORACLE(realm-config)# select
   identifier:
   1: realm01 left-left:0 0.0.0.0
   
   selection: 1
   ORACLE(realm-config)#

3. If using this surrogate registration SPL configuration for a trunk, Configure this option on the realm-config facing the CUCM realm.

   ORACLE(realm-config)# spl-options +dyn-contact-start

4. If using this surrogate registration SPL configuration for a trunk, configure this option on the realm-config facing the KDDI trunk.

   ORACLE(realm-config)# spl-options +dyn-contact-method=randomseed

5. If excluding the contact validation component of the SPL surrogate registration function for a KDDI trunk, type spl-options +dial-inservice-validation to apply this feature on the applicable ingress realm.

   ORACLE(realm-config)# spl-options +dial-inservice-validation

6. Type done and save your work.