Installed a UC560 at a customer site with a SIP connection to a COX Edgewater. Incoming and outgoing calls are working but having trouble with conference calls. Conference calls work internally but when you try to conference in an external caller the call fails.
Configure Multicast Paging on the Cisco IP Phone 7800 Series or 8800 Series Multiplatform Phone
The Cisco IP Phone 7800 and 8800 Series Multiplatform Phones provide voice communication over an Internet Protocol (IP) network...
Add Call Park on a Cisco 7800 or 8800 Series Multiplatform Phone Key Expansion Module
Call park allows the user of the phone to put an incoming call on hold so that the call can be retrieved on another phone. A call is park...