[Asterisk-Users] Dropped calls -> reproducing scenario

[Thomas Gallaway]

So I think I am able to reproduce the dropped call scenario.

Here is what I do to get a dropped call:
1. Call 1-800-tmobile
2. Go true their IVR and get connected to the customer service IVR
3. Enter my number and SSN
4. press 0
5. Then the audio please hold starts. After about 2-4 seconds the call
gets dropped.  (fast busy tone)

The time on my phone will stop running (call time) and I will get this error
in the asterisk logs:
    -- Executing Dial("SIP/113-94a1", "Zap/g1/18008662453") in new stack
    -- Called g1/18008662453
    -- Zap/1-1 answered SIP/113-94a1
Apr 29 10:41:14 WARNING[-1210664016]: chan_sip.c:495 retrans_pkt: 
Maximum retries exceeded on call
113 for seqno 102 (Request)
    -- Hungup 'Zap/1-1'

I did this 4 times and all the time the exact same scenario. When I 
called from my cellphone everything was fine.

Any ideas?

Thanks,
             Thomas