Legacy: Send Calling Name and Extension
Legacy: Called Number
Legacy: Calling Number
RFC 3261: Send Calling Name and Extension
RFC 3261: Called Number and Extension
RFC 3261: Calling Number and Calling Extension
Legacy: Strip Extension
Legacy: Calling Number
Legacy: Strip Extension
RFC 3261: Strip Extension
RFC 3261: Strip Extension
Legacy: Strip Calling Number
EXT to User 1
User 1 to Calling Number
Legacy: Strip EXT
RFC 3261: Send Extension
RFC 3261: Strip Calling Number
Legacy: Called Number to Mod.DN
Legacy: Mod.DN
RFC 3261: Mod.DN
Mod.DN