Configuration Guide Session Plug-In Language Enterprise SPLs SIP Trunking SPLs for Specific Service Providers Configure Surrogate Registration Configure Surrogate Registration Configure this SPL on the sip-interface facing the KDDI trunk. Access the sip-interface configuration element. ORACLE# configure terminal ORACLE(configure)# session-router ORACLE(session-router)# sip-interface ORACLE(sip-interface)# Select the sip-interface object to edit. ORACLE(sip-interface)# select <RealmID>: 1: realm01 172.172.30.31:5060 selection: 1 ORACLE(sip-interface)# Type spl-options +Control-Surr-Reg. ORACLE(sip-interface)# spl-options +Control-Surr-Reg Type done and save your work.