[asterisk-users] failed calls

[Jonathan k. Creasy]

I am trying to track down a problem which is occurring on about 1% of
the phone calls through a customer's system. 

 

Layout looks like this:

 

PSTN <-- PRI <-- Asterisk A <-- IAX Trunk over point to point T1 <--
Asterisk B <-- SIP over LAN <-- Polycom IP501

 

1)       The user on the Polycom IP501 phone dials a number. 

2)       It is routed across the LAN to an Asterisk PBX 

3)       The call is then routed across the T1 via IAX to another
Asterisk Server

4)       This server drops the call on a PRI line

5)       The callee will hear their phone ring

6)       On the Polycom you hear 5-10 seconds of silence then a fast
busy. 

7)       The callee answers but no one is there. 

 

I see the following in my debug log (on Asterisk B) but I'm not sure if
any of these messages are abnormal: 

 

Aug 21 08:39:18 DEBUG[16560] channel.c: Didn't get a frame from channel:
SIP/101-40c4

Aug 21 08:39:18 DEBUG[16560] channel.c: Bridge stops bridging channels
SIP/101-40c4 and IAX2/ROUTING-6

Aug 21 08:39:18 DEBUG[16560] chan_iax2.c: We're hanging up
IAX2/ROUTING-6 now...

Aug 21 08:39:18 DEBUG[16560] app_dial.c: Exiting with DIALSTATUS=ANSWER.

Aug 21 08:39:18 DEBUG[16560] chan_sip.c: update_call_counter(101) -
decrement call limit counter

 

Anyone have any ideas on this?

 

-Jonathan

 

 

Jonathan Creasy
Network Engineer

BluegrassNet Development

www.bgnd.com www.bluegrass.net

o. 502-589-4638

c. 502-889-5567

h. 812-206-1830

 

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