For almost 5 years, we had a Mitel 5020 IP Phone Handest that we used for working from home. The phone plugged directly into a 4 port Netgear router which in turn was connected to a Linksys Cable modem. Comcast was the ISP. The phone worked perfectly in connecting with the remote PBX.
We moved to VZN FiOS one month ago and the phone has not worked since the new service was installed. We followed the reset instructions for the phone and even returned it to the home office for testing. The phone work perfectly in the office.
The company telecom/IT support is hit & miss: they returned the handset to us and kinda left us on our own to resolve the problem.
We have a Westell Ultraline Series 3 9100EM router now. The phone has been connected directly to the back of the router via ethernet cable. I can ping the phone and ping the PBX from the router; but the PBX and phone no longer connect (although IT states that the PBX server sees the device).
Is this a port forwarding issue? If not, what other router settings should I check?
I really enjoy the FiOS speed and the rest of the networked devices have all worked flawlessly since the conversion - even a flakey print server.
Any thoughts?
