1) Setup Rating Database:
1.1) Add Provider name in rating.providers
1.2) Add Trunk info in rating.trunks
1.3) Add records in rating.outbound_routes table
2) Setup Entries in ComtelPBX Database:
2.1) Add records in comtelpbx.obprovidertrunks dialplan table
2.2) Add SIP Peer in comtelpbx.sip_users
2.3) Add DB entries in provider_map table
3) Setup ComtelPBX Server Flat Files:
3.1) Add switch entries on realtime dialplan in extensions.conf
3.2) Add SIP configuration entry in /etc/carriers.conf file or IAX entry in /etc/iax.conf
Phone System 