Iñaki Baz Castillo writes: > I've never seen a PSTN gw properly handling a REFER, neither I think a > PSTN gw should handle it (but a B2BUA/PBX) between the UA and the PSTN > gw(s).
i don't see any problem if gw charges the call based on referred-by that proxy has verified. i think that even cisco ios gws with rather current software can do that. > Honestly I can imagine how a PSTN gw is supposed to assert the value > of "Referred-By". Perhaps it just allows the REFER if it contains a > Referred-By matching the From URI header? gw does not assert the refer. it is the proxy that does that. gw simply generates a call to pstn and places the number in referred-by header to the charged party field of isdn or isup message. exactly the same as it does with diversion header, which has worked fine forever. -- juha _______________________________________________ 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
