++ In the above setup message, there was no called number, so wondering how the receiving end will route the call. And that explains the error message too. Can you check with them why they are not sending the called number in the setup.
// Below setup only has calling number, no called number.
Sending Complete Bearer Capability i = 0x8090A3 Standard = CCITT Transfer Capability = Speech Transfer Mode = Circuit Transfer Rate = 64 kbit/s Channel ID i = 0xA9839B Exclusive, Channel 27 Calling Party Number i = 0x0083, '55491715' Plan:Unknown, Type:Unknown