LG OCS 2007 IP8540 - Manual (Page 55)

IP8540 User Guide
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ü Do you have any internal firewall? If so, make sure UDP ports on internal firewall are open
for communication.
5.3 Conference Call
I am trying to add someone to a conference, but I keep seeing "Connecting" on display.
•
See Unexpected Behavior later in this section.
•
Contact your IT Help and check:
ü Make sure AV MCU's are configured in the network.
ü Make sure VoIP is enabled on AV MCU's.
ü Make sure IP8540 user is UC enabled.
5.4 Unexpected Behavior
IP8540 locked up while I was doing <xyz… >.
•
Restart your device by power cycling. Notify your IT Help should this reoccur.
IP8540 is behaving inconsistently
•
Power-cycle the device to restart your phone. Notify your IT Help should this reoccur.