ACLI Configuration Guide Session Plug-In Language SIP Trunking SPLs for Specific Service Providers SPLs for NTT Trunk Support Configure the Trunk Facing SIP Trunk Support Option Configure the Trunk Facing SIP Trunk Support Option Configure these SPL options on the trunk facing sip-interface. To configure the SPL option: In Superuser mode, type configure terminal and press Enter. ACMEPACKET# configure terminal Type session-router and press Enter. ACMEPACKET(configure)# session-router ACMEPACKET(session-router)# Type sip-interface and press Enter. ACMEPACKET(session-router)# sip-interface ACMEPACKET(sip-interface)# Type spl-options dyn-contact-method=randomseed and press Enter. ACMESYSTEM(sip-interface)# spl-options + dyn-contact-method=randomseed Type ocNttMsgConverterTagging=enabled and press Enter. ACMESYSTEM(sip-interface)# spl-options + ocNttMsgConverterTagging=enabled Type done and save your work.