One of our customer call manager located accross the WAN Links. The customer is testing by connecting the phone in the local network and pointed to the call manager.
The phone able to connect the call manager to download the initital files and upgraded. After that it's always showing registering...
We have opened up all the required firewall ports also. is there any particular help topics available for the phone to connect call manger 4.1
Siva Prasad K.