Hello, does the pbx support Path extension (see path module of kamailio for more details)? If yes, then it should be a rather simple setup of an edge proxy. A starting point can be the kamailio.cfg example from dispatcher module:
http://kamailio.org/docs/modules/4.3.x/modules/dispatcher.html#dispatcher.ex.config You seed few changes: - add path headers for REGISTER requests and relay the REGISTER requests to PBX - any other sip traffic not coming from PBX, relay it to pbx - handle initial requests coming from PBX based on Route header If in dispatcher table you add a single destination address (the PBX), the you can just reuse the part with dispatcher in that config. Cheers, Daniel On 17/11/15 17:55, Steven Maddox wrote: > Hi, > > Sorry to ask something probably very simple but I'm difficulty finding > the right kinds of resources to learn from which are succinct enough to > not overload my head. > > We have a PBX which we don't control (and hate) which expects only > certain makes/models phones to register (it checks for user agents). > > I have a phone which unfortunately doesn't support tweaking its user > agent, so I'd like to pass it through an extremely SIP proxy to have > it's user agent tweaked and all other data to/from the PBX transparently > let through. > > I've managed to knock up something (that isn't a proxy) using Asterisk > where I made a trunk and a peer... but obviously since this isn't a > proxy... things like BLF and transferring calls will never work. > > If anyone can point me in the direction of a really simple set up to > achieve this, please let me know :) > -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com Kamailio Advanced Training, Nov 30-Dec 2, Berlin - http://asipto.com/kat _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
