[Asterisk-Users] Hold and transfer problem

[Kevin Walsh]

I got a Cisco 7960 phone recently, and have downloaded and set up
Asterisk version 0.5.0.  Very nice!

I've set up the software on a test box for now and have configured
the system to route calls that start with 7 to FWD.  Once I'm happy
with my various tests, I will set this all up on a dedicated box,
will get a couple of POTS interface cards and will set up some
proper routes etc.

Anyway, the FWD stuff works as expected, as does the answering machine.
The problem I have is when I put a call on hold, or attempt to transfer
a call (same issue, I expect).  Once the call is put on hold, I can't
resume it and, after a couple of seconds, I get a "Maximum retries
exceeded" error (verbose mode).  

If I put a call on hold and just leave it that way then I get the same
message and, of course, am unable to resume the call.

I suspect that the Cisco 7960 configuration is at fault here, and am
wondering if anyone has any advice.  I have searched around with
Google but have not found any answers, although I have found a few
similar (and unanswered) questions.

I have tried the latest Asterisk version from CVS but that doesn't
seem to like my phone at all.  For instance, the voicemail application
won't read the DTMF tones and so won't allow me to enter a password.

I suspect that there's some silly little Cisco configuration value that
I've overlooked, but I just can't seem to find it.

Thanks for any help that can be offered with this.  I can live with
version 0.5.0 and just not use hold/transfer, but I'd prefer to find
a solution.

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