we habe a problem with the resolution of a specific server record. when trying to call a user [email protected]_a.org the call fails, no incoming call request is reported. 'dom_a.com' is a DNS dname record which points to dom_b.org which then provides the service records for sip e.g. _sip._tcp.dom_b.org.
Calls to [email protected]_b.org would work (we see the incoming call request), but since the user registers with dom_a.org the call also fails because the now user is unknown.
Should dname based name resolution work with the ciscojabbervideo.com service? Does anybody have an idea what else could be wrong?
Thank you in advance,