<span style="font-family: Arial, Helvetica, sans-serif; font-size: 10pt">CDR I concur. I have ran in to the same issue as well. With three of our five carriers. Two of the three are names we would all recognize. I have fought with them on this issue and they tell me that it happens when they are terminating to other voip vendors and the vendor is no responding in a timely manner. The other two carriers are terminating to PRI only so we don't have the issue with them. It is very frustrating as customers call to ream us and there is currently nothing I can do. A first-ring timeout parameter as proposed that would also set a variable stating that the first-ring timeout occurred would be great. It would remove a massive thorn in my side.<br />
I have been racking my brain on this issue for months and somthing as simple as this would solve the issue.<br />
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Bryant / zktech<br />
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<span style="font-family: tahoma,arial,sans-serif; font-size: 10pt;"><hr width="100%" size="2" align="center" />
<b>From</b>: "Benny Amorsen" <benny+usenet@amorsen.dk><br />
<b>Sent</b>: Thursday, February 25, 2010 9:16 AM<br />
<b>To</b>: "Asterisk Developers Mailing List" <asterisk-dev@lists.digium.com><br />
<b>Subject</b>: Re: [asterisk-dev] Bounty</span><br />
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CDR <venefax@gmail.com> writes:<br />
<br />
> I need a new Timeout parameter added to the Dial application, for SIP<br />
> dialing. The new timeout would be "first-ring" timeout, as opposed to<br />
> timeout for connection. If we don't get a 180 Ringing message before a<br />
> certain amount of seconds, the call fails. This a needed addition to<br />
> Asterisk. I need this in version 1.4 and cannot wait the normal time for a<br />
> "new feature" process to complete. The rationale is clear: many carriers<br />
> will hold the call indefinitely, instead of returning a 503. If the call<br />
> is ringing, then I don't care if it rings for 60 seconds, but if there is<br />
> no ringback before 6 seconds, I need yo try another carrier and move on.<br />
<br />
Is this something that you experience a lot of carriers doing in normal<br />
use? It seems rather unusual for a carrier to fail to make a timely<br />
reply except when the carrier is down completely. If the carrier is down<br />
completely, you can add qualify for that particular carrier, and your<br />
calls should fail immediately instead of waiting.<br />
<br />
<br />
/Benny<br />
<br />
<br />
<br />
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