Hi All I am having trouble setting up a Yealink T26 Handset as a remote extension. I can get a sip registration however the handset says "network unavailable" then after a while the registration drops off. The remote handset is behind a router with inward & outward port forwarding set up to point to the local handset IP address. Am I missing some sought of setup in elastix for the remote extension itself? I have the remote extension set up as a normal sip extension. Thanks . Would appreciate some guidence.