PROBLEM: external calls on 7941 phone forwarded to Sprint cell phone

Unanswered Question
Apr 28th, 2008

A user does a CFwdAll on a 7941 phone to a Sprint cell phone. Internal calls go to the cell phone and ring and can be answered or will eventually go to cell phone voice mail. External calls will ring one time on cell phone and that is it. The caller will hear continuous ringing but will not go to cell VM.

Callee cannot answer call on cell phone even if do so by first ring - in this scenario the caller still just hears ringing even though callee attempted to answer. AT&T / Cingular cell phones work fine. So far it is just the Sprint cell. Any ideas?? We are on Call Manager 4.2; Unity 4.0 Build 4.0(5)

I have this problem too.
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maryclegg Tue, 04/29/2008 - 06:19

Verizon would be our PSTN. I have since tested with Alltell and Verizon cell phones and they work fine. Still just pointing to the Sprint cell phone. Any help would be appreciated.

rob.huffman Thu, 05/01/2008 - 05:25

Hey Mary,

Time to turf Sprint (just kidding ;-)

Have you tried playing with these settings on the DN Page for the user who is forwarding to their Sprint Mobile?

Forwarded Call Information Display

Caller Name

Caller Number

Redirected Number

Dialed Number

It sounds like Sprint doesn't like the way the forwarded call is being presented.

Let us know,


maryclegg Thu, 05/01/2008 - 10:30

Rob, I was just getting ready to play with Forwarded Call Information Display but all of sudden today it was working. It has not worked since last Friday and today it is working and I have made no changes. Honest, I have witnesses that it was not working. I had opened a TAC service request and sent them several traces and debugs but that is all I have done. Thanks, though for your response and interest.

rob.huffman Fri, 05/02/2008 - 05:00

Hey Mary,

Well it's always great when things work out like this (I wish it happened more often :)

I guess we should have figured out that if this was working with all of the other Cellular providers you listed that it may have been a problem "outside" of your CCM.

We broke the standard troubleshooting "rule of thumb"

Start with the simple and work towards the complex ;-)

Glad to hear it worked out!



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