Ports will go out of service for the following reasons:
The port is in use by another application.
In this case the port will keep alternating between in and out of service as both applications try to regain control.
MiAUDIO Lost its connection to the PBX due to network issue.
In this case you will see that all ports will be out of service.
Warning
VWM will not be processing calls if the port is out of service.
Make sure the port is programmed as a '5020 IP', its Service Type is 'User and Device' and its MAC Address start with 'A1:21:XX:XX:XX:XX' where XX XX XX XX is the DN of the port. i.e:
port 1221 its MAC Address will be A1:21:00:00:12:21
port 1109 its MAC Address will be A1:21:00:00:11:A9
port 778965 its MAC Address will be A1:21:00:77:89::65
port 99887766 its MAC Address will be A1:21:99:88:77:66
VWM