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tel


Registration Date: 01.01.1970
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traurig SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Hi,
I am getting a lot of failed calls with either a SIP response 480 or no final SIP response at all in the log. PBXes plays the 'all circuits are busy' message for the SIP 480. I have checked that the dialled numbers are correct, and that the numbers answer when called from a mobile or landline.
I have changed the trunk provider from Voicetrading to Voipcheap but no difference.
Unfortunately I don't know when it started because it has only just been brought to my attention and the log only goes back a week. Possibly its been happening since 'go live'.
Any ideas ?
29.08.2008 19:28 telagente01 is offline Search for Posts by telagente01 Add telagente01 to your Buddy List
Dia
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Registration Date: 03.03.2006
Posts: 1443
RE: SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Is this message being heard when trying to place outgoing calls? If it is happening on every call or on every second or third call?

Let us know the FQDNs you are using in the "SIP server" field of your trunks.
10.09.2008 14:51 Diafora is offline Search for Posts by Diafora Add Diafora to your Buddy List
tel


Registration Date: 01.01.1970
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RE: Betamax - SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Only outgoing calls, maybe 10% at most.
Using sip.voicetrading.com in sip server field.
Regards
10.09.2008 23:23 telagente01 is offline Search for Posts by telagente01 Add telagente01 to your Buddy List
Dia
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RE: Betamax - SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

The sip.voicetrading.com FQDN resolves into two IPs:

;; ANSWER SECTION:
sip.voicetrading.com. 883 IN A 194.120.0.198
sip.voicetrading.com. 883 IN A 194.221.62.198

So one of them should be having an issue routing certain calls. Are the failed calls concentrated at certain times of the day?
10.09.2008 23:41 Diafora is offline Search for Posts by Diafora Add Diafora to your Buddy List
tel


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RE: Betamax - SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Seem to come in clusters,
today:
4 between 9 and 10am
4 between 1 and 3pm
4 between 4 and 5pm

Outgoing calls are pretty evenly spread over the day

Update
This issue seems to have disappeared of its own accord, I assume related to the trunk rather than the PBX.
Regards
Ron

This post has been edited 1 time(s), it was last edited by tel on 01.12.2008 at 12:17.
11.09.2008 00:08 telagente01 is offline Search for Posts by telagente01 Add telagente01 to your Buddy List
Dia
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Registration Date: 03.03.2006
Posts: 1443
RE: Betamax - SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Definitely a trunk related issue.
04.12.2008 00:25 Diafora is offline Search for Posts by Diafora Add Diafora to your Buddy List
tel


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RE: Betamax - SIP response 480 Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Everything motoring very smoothly now, and all other issues and queries are resolved.
Thanks for the help and support In these threads, hopefully they have helped others as well.
Regards
Ron
04.12.2008 01:42 telagente01 is offline Search for Posts by telagente01 Add telagente01 to your Buddy List
 
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