asterisk users - May 2018 - 7965G sporadically not able to make calls via chan_sip

sometime during the past few upgrades on asterisk 13, my Cisco 7965G phones are
sporadically not able to make calls.? after a few seconds, they just play a
fast-busy tone.? I tried upgrading the 7965G OS from their original (working for
years) 9.4.2SR1 to 9.4.2SR3 and the behavior did not change.

they are talking via chan_sip on asterisk 13.19.0.? I cannot determine the
sporadic part, sometimes the call goes through fine with no configuration
changes or restarts/reboots on either end.

sip debug from asterisk:
https://pastebin.com/Mmz9JsAP
tcpdump from pbx:
https://pastebin.com/jRT9QJwq
sip.conf:
[121]
type=friend
;qualify=yes
;qualifyfreq=300
host=dynamic
context=extensions
secret=MySecret
nat=no
callerid="MBR" <121>


can anyone give me clues to troubleshoot?





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Hi,

the tcpdump starts with a pretty standard INVITE sequence:

10.0.0.121 -- INVITE --> 10.0.0.3
10.0.0.121 <-- 401 Unauthorized -- 10.0.0.3	// asterisk gives nonce in
WWW-Authenticate: header
10.0.0.121 -- ACK --> 10.0.0.3

After that, normally you would see a new INVITE from the phone with
Authorization: header, but in your case the phone does not send this - although
it is clearly reachable as indicated by the SIP OPTIONS dialogue.

In the Asterisk SIP debug, I see only the packets sent by Asterisk to the phone,
but not the phone's responses. Did you do just 'sip set debug on' or
something different?

Can you provide the same logs for a successful call?

Do incoming calls to the phone work when this happens?

-- 
BR,

marie

On 02.05.2018, at 20:23, John Kinsner <jkinsner1 at yahoo.com> wrote:
> sometime during the past few upgrades on asterisk 13, my Cisco 7965G phones
are sporadically not able to make calls.  after a few seconds, they just play a
fast-busy tone.  I tried upgrading the 7965G OS from their original (working for
years) 9.4.2SR1 to 9.4.2SR3 and the behavior did not change.
> 
> they are talking via chan_sip on asterisk 13.19.0.  I cannot determine the
sporadic part, sometimes the call goes through fine with no configuration
changes or restarts/reboots on either end.
> 
> sip debug from asterisk:
> https://pastebin.com/Mmz9JsAP
> 
> tcpdump from pbx:
> https://pastebin.com/jRT9QJwq
> 
> sip.conf:
> [121]
> type=friend
> ;qualify=yes
> ;qualifyfreq=300
> host=dynamic
> context=extensions
> secret=MySecret
> nat=no
> callerid="MBR" <121>
> 
> 
> can anyone give me clues to troubleshoot?
> 
> 
> 
> 
> 
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