On 12/09/2010 08:15 AM, Bruce McAlister wrote:
> I have now logged issue number 0018447 relating to this query.

The real question here is how you define 'not responding to INVITEs'. 
According to the RFC, Asterisk must wait 64*T1 for a response to an 
outbound INVITE, which is 32 seconds. If 'qualify' is enabled for the 
SIP peer and it responds to OPTIONS pings quickly, Asterisk can reduce 
the T1 timer value from 500ms down to 100ms, which drops the INVITE 
timeout to 6.4 seconds... but it can't be any shorter than that without 
violating the RFC requirements.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kflem...@digium.com
Check us out at www.digium.com & www.asterisk.org

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