On 10/19/2011 12:50 PM, Pavesi, Valdemar (NSN - US/Irving) wrote: > The 100-trying will be used to stop the timer T1 (500MSEC) , If any > subsequent response 18x will take longer than 500msec than 100trying > will > Be send back to stop the timer T1. Check the timestamp when 180ringing > was send.
This is incorrect; Timer T1 is just a base value for other timers, it never 'fires' on its own. It would be completely impractical to require a provisional response to appear before Timer T1 expired (and thus cause a retransmission). The '100 Trying' response (or any other provisional response) stops Timer B, which defaults to 64 * Timer T1 (so nominally it is 32 seconds). -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies Jabber: [email protected] | SIP: [email protected] | Skype: kpfleming 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA Check us out at www.digium.com & www.asterisk.org _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
