I inherited this system when we acquired the office so I'm not as familiar with MiTel as I should be.
I have a single teleworker and her 5320 phone is able to connect to the server, able to make/receive calls but there is no voice heard on either end. Problem started when two changes were made at the same time - teleworker converted from DSL to AT&T UVerse and our Cisco vendor made firewall changes to add this location to our WAN.
After many searches here and elsewhere it appears that the problem is almost always a port issue in the firewall. I have confirmed that I have the following ports open:
UDP 50098-50508
UDP 67-69
UDP 20001
UDP 5004-5069
UDP 6004-7039
UDP 5567
TCP 6800-6802
TCP 3998-3999
TCP 5566
TCP 5570
TCP 4000
TCP 80
TCP 44000
TCP 443
The 5320 has been assigned a static LAN IP (192.168.254.x) with the public IP loaded as the Cur Controller IP & ICP1 IP Address.
Any thoughts on what would cause no sound given that those ports are open and that I can connect?