Apparently we've been having calls sporadically drop. We're using an
IAX outbound trunk and SIP adapters on the inside.
Below is a log excerpt detailing one of the calls which dropped, and it
looks largely normal to me except for this:
Jan 5 13:31:07 DEBUG[3776] channel.c: Didn't get a frame from channel:
IAX2/teliax-2
Jan 5 13:31:07 DEBUG[3776] channel.c: Bridge stops bridging channels
IAX2/teliax-2 and SIP/davidblanco-e02c
Can missing one IAX frame result in a dropped call? Seems pretty
fragile if that's the case. Would enabling the jitter buffer mitigate
this? Any other suggestions?
Jan 5 13:29:51 VERBOSE[29852] logger.c: -- Accepting
UNAUTHENTICATED call from 208.139.204.245:
> requested format = ulaw,
> requested prefs = (g729|ulaw|g726|gsm),
> actual format = gsm,
> host prefs = (gsm|ulaw),
> priority = mine
Jan 5 13:29:51 VERBOSE[3776] logger.c: -- Executing
Dial("IAX2/teliax-2", "SIP/davidblanco|30|tr") in new stack
Jan 5 13:29:51 DEBUG[3776] chan_sip.c: Setting NAT on RTP to 524288
Jan 5 13:29:51 DEBUG[3776] chan_sip.c: Outgoing Call for davidblanco
Jan 5 13:29:51 VERBOSE[3776] logger.c: -- Called davidblanco
Jan 5 13:29:51 DEBUG[29854] chan_sip.c: (Provisional) Stopping
retransmission (but retaining packet) on
'[EMAIL PROTECTED]' Request 102: Found
Jan 5 13:29:51 DEBUG[29854] chan_sip.c: (Provisional) Stopping
retransmission (but retaining packet) on
'[EMAIL PROTECTED]' Request 102: Found
Jan 5 13:29:51 VERBOSE[3776] logger.c: -- SIP/davidblanco-e02c is
ringing
Jan 5 13:29:57 DEBUG[29854] chan_sip.c: Acked pending invite 102
Jan 5 13:29:57 DEBUG[29854] chan_sip.c: build_route: Contact hop:
<sip:[EMAIL PROTECTED]:5060>
Jan 5 13:29:57 VERBOSE[3776] logger.c: -- SIP/davidblanco-e02c
answered IAX2/teliax-2
Jan 5 13:29:57 DEBUG[29852] chan_iax2.c: Ooh, voice format changed to 2
Jan 5 13:29:59 DEBUG[29852] chan_iax2.c: Peer lastms 70, historicms 70,
maxms 2000
Jan 5 13:30:15 DEBUG[29852] chan_iax2.c: Peer lastms 28, historicms 28,
maxms 2000
Jan 5 13:30:59 DEBUG[29852] chan_iax2.c: Peer lastms 71, historicms 71,
maxms 2000
Jan 5 13:31:07 DEBUG[29852] chan_iax2.c: Immediately destroying 2,
having received hangup
Jan 5 13:31:07 DEBUG[3776] channel.c: Didn't get a frame from channel:
IAX2/teliax-2
Jan 5 13:31:07 DEBUG[3776] channel.c: Bridge stops bridging channels
IAX2/teliax-2 and SIP/davidblanco-e02c
Jan 5 13:31:07 DEBUG[3776] chan_sip.c: update_call_counter(davidblanco)
- decrement call limit counter
Jan 5 13:31:07 DEBUG[3776] app_dial.c: Exiting with DIALSTATUS=ANSWER.
Jan 5 13:31:07 VERBOSE[3776] logger.c: == Spawn extension (default,
6078210976, 1) exited non-zero on 'IAX2/teliax-2'
Jan 5 13:31:07 DEBUG[3776] cdr_addon_mysql.c: cdr_mysql: inserting a
CDR record.
***CDR STUFF OMITTED***
Jan 5 13:31:07 DEBUG[3776] chan_iax2.c: We're hanging up IAX2/teliax-2
now...
Jan 5 13:31:07 DEBUG[3776] chan_iax2.c: Really destroying IAX2/teliax-2
now...
Jan 5 13:31:07 VERBOSE[3776] logger.c: -- Hungup 'IAX2/teliax-2'
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