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T46G - Line Call Forwarding to External # - Printable Version

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T46G - Line Call Forwarding to External # - David R - 08-13-2018 02:34 PM

Equipment:
Yealink T46G - I have one phone, no PBX, Connected directly to modem, 5 incoming SIP lines.
Version:
Firmware Version 28.83.0.35
Hardware Version 28.1.0.128.0.0.0

Problem: Call forwarding is set for busy lines, and no answer to an external line. It stopped working this spring, and I have been unable to find the solution to properly troubleshoot.

What happens now:
The phone's screen says Forward to: [the programmed #], there is a brief busy signal, and the call is dropped.

What I tried:
I thought it might have been an issue with my virtual voice mail service, but it won't forward to any other number either. I have updated the software, I have reset the phone to factory specs, and I have followed the tutorials, and now have invested more time and energy into this than I care to admit.

Either the software has a glitch, or I missed something.

Please help me.


RE: T46G - Line Call Forwarding to External # - jolouis - 08-17-2018 02:38 PM

Sounds more like your service provider changed something on your end and is not letting the call forward happen. Since you are not in control of the PBX you will need to contact the provider and see if they can assist you in troubleshooting this. I doubt it's anything to do with the phone itself. If you wanted to be really sure you could run a pcap trace on the phone, then try dialing in and see exactly what the SIP messages back and forth say when the call gets dropped. I suspect you would see the phone send a "Forward to ###" message to the PBX, and the PBX send back a rejection or failure for some reason.