> > > > Why were those explicit expires parameters added? > > > > I think it was added as a best-effort fix for > http://track.sipfoundry.org/browse/XX-5009. Before we set it > explicitly to 60 seconds, it was being cancelled at 20 > seconds by some other part of the logic. That was so short > that a cell phone couldn't forward to its own voicemail.
I think that the 20 seconds was the 'Default Serial Fork Expiration' kicking in in the absence of any explicit Expires directive. The other problem is that there seems to be an upper bound to the expires we can specify for any fork. Basically, if you set a very large Expires for gateways then you'll run into the 180 seconds maximum imposed by the 'Default Expiration' setting. Kinda caught between a rock and a hard place... _______________________________________________ sipx-dev mailing list sipx-dev@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-dev Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-dev sipXecs IP PBX -- http://www.sipfoundry.org/
