Hi, I know that this question has been discussed many times on this list but I lost track of the current state of the rules when SipX challenges an incoming INVITE for credentials.
So the question is: what are the exact rules which determine whether SipX challenges an incoming INVITE for authentication? The motivating scenario is the following. There is a Cisco gateway connected to SipX. External calls are correctly routed to SipX and everything works fine for basic call scenarios. However, there is a problem of transferring an incoming call from the gateway. Steps are the following: - The external incoming call coming from the gateway to SipX is established between the gateway and an internal SipX extension (Snom 300) - The internal SipX extension transfers the call to a number. Therefore it sends a REFER to the gateway. - The gateway places an INVITE to the transfer destination. - If the transfer destination is an internal SipX extension, the INVITE is proxied by SipX and the transfer is successful. - If, however, the transfer destination is a number on a trunk (selected by a dial rule), SipX challenges the gateway. As the gateway does not know about the credentials of the extensions, the gateway cancels the transfer. I would like to know, how to get rid of that challenge. Any idea? Regards, Gabor _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
