I get this error time to time to certain numbers. There is an incoming call and freeswitch is trying to do a bridge to this number. Codec on all calls is only G.711. 

When I see this error, I see freeswitch sends an Invite message and then Cancel in less than one second after it receives 100 Trying.

Any suggestion what I should look for or why this pops up. It results to outbound call failure and hangup cause is 88: INCOMPATIBLE_DESTINATION

Any suggestion or advice would be greatly appreciated.

Thanks,

Ali Pey