> I want to make a UAS send periodic RINGING responses > as the phone is being alerted. Are there any guidelines > for what the interval between such responses should be?
RFC3261 and RFC3262 discuss periodic provisional responses concerning timer C. They suggest sending at 60 second intervals when not reliable and sending at 150 second intervals when reliable. If timer C is not your concern, I'm currently not aware any RFC's encouraging periodic 180's since they add extra traffic to the network. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
