No takers? :) I wonder if it's possible to script this in a B2BUA scenario? I'm not sure how one would do detection of 180 without SDP versus 180/183 with SDP in B2B-land. Or, what to do from there once it knew.
- Jeff On Mon, Sep 23, 2013 at 10:43 AM, Jeff Pyle <[email protected]> wrote: > Hi Laszlo, > > Unfortunately the effect for the caller would be the same - ringback would > stop. > > Here's the whole flow. My terminating gateway is SIP to ISDN PRI. Call > terminates through the gateway to a particular mobile switching office. I > receive an ISDN PROGRESS message with inband audio. This translates to the > 183 with SDP. Then I receive an ALERTING message with no inband audio. > This translates to the 180. When the MSO sends the ALERTING, it has > stopped sending the inband audio from the previous PROGRESS message. > > I'm thinking I need to do something else in the onreply_route to connect > to the media server for a new 183. Since I've executed t_relay to route > the INVITE to the gateway, it seems my options are limited. > > > - Jeff > > > > -- > Jeff Pyle <[email protected]> > Director, Voice Engineering > Fidelity Voice and Data > 216-245-4106 > www.fidelityvoice.com > > > > On Mon, Sep 23, 2013 at 8:57 AM, Laszlo <[email protected]> wrote: > >> What if you simply drop the 180 in the onreply_route? >> >> -Laszlo >> >> >> 2013/9/23 Jeff Pyle <[email protected]> >> >>> Hello, >>> >>> I have one particular PSTN call flow that causes a 183 with SDP, then a >>> 180 without SDP prior to 200 OK. Some of my customer endpoints don't >>> handle the 180 properly after a 183 and they cease to hear ringback. >>> >>> I'm thinking through how intercept the 180 and convert it to a 183 with >>> SDP. I have a media server available to generate the 183 and the media. >>> I'm struggling with how to relay the INVITE to the media server when the >>> 180 arrives in the middle of the call setup. >>> >>> Any recommendations are appreciated. >>> >>> >>> >>> Regards, >>> Jeff >>> >>> >>> _______________________________________________ >>> Users mailing list >>> [email protected] >>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>> >>> >> >> >> -- >> >> -- >> Kind regards, >> Laszlo Bekesi >> http://voipfreak.net >> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >> >> >
_______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
