Unanswered calls will not forward to voicemail - Error 603 Declined


#1

I have a GXV3240 phone. When calling the phone it rings about 10 times and rather than transferring to voicemail it plays a message Error 603 declined. The phone server is a UCM6208. Other phones are working properly. Why is this one failing to transfer to voicemail?

Thanks,

David


#2

Could you confirm there is no forwarding setup on the extension on the UCM?

Sounds like you might have “call forwarding no answer” configured going somewhere your not intending.


#3

What is the firmware version on the UCM? I had a similar issue on older firmware.