IPC can boot up and load the user profile successfully in the below network enviroments:
1. LAN
2. WLAN
3. Internet(DSL)-VPN
4. WLAN-VPN
but failed by using a ATT USB881 aircard connected to VPN.
I can see the IPC registered with Call Manager and had loaded software "SEP001c26a62cc5.cnf.xml"
but no lines showed on screen.
Does anyone know this issue and how to solve it?
Thanks,