Scott wrote: > I've been seeing a lot of 3.11 traces lately in which Polycom > phones send 'Require: 100rel' in 180 responses. > > Is there some reason why someone thought this was a good thing? > > It adds quite a lot of traffic to the system, and I am not > aware of any reason why we need it. If this is currently the > default setting in our Polycom (or any other vendor) > configurations, then I think we should change it to _not_ > request reliable provisional responses.
Response from Polycom: ------------------------------------------------- Unfortunately no, there is no config parameter I can point to for this. Prack behavior hasn't changed at least as far back as 3.0.2 when a fix was implemented to fix a case where phones were disregarding a Required:100rel in an INVITE. As far as the Require:100rel in the 180 response however, this has long since been this way. If a supported or a required 100rel header is present in the INVITE we will make use of reliable provisioning. ------------------------------------------------- -Paul [email protected] _______________________________________________ sipx-dev mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-dev Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-dev
