Scenario#29 – Interworking error -0x80FF

I came across this issue with one of  our customer last week where a call was coming in to receptionist at Site ‘A’ but she was not able to transfer the call to someone at Site ‘B’. They had Centralized deployment and all phones on branch sites were registered to Central site. The call was dropping as soon as she would press ‘hold’ to transfer the call. This is what I was getting on Site ‘A’ gateway: 2621-VG01# .Feb  7 09:25:14.805: ISDN Se1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x0002 Sending Complete Bearer Capability i = 0x8090A3 … Continue reading Scenario#29 – Interworking error -0x80FF