We have a customer with a Cisco UC520 and 7940 series phones currently at 4.2 software. We are adding SPA504G series phones but the unit wont recognize them, we have tried just a phone upload to 8.2 but the unit still doesn’t recognize the phones. If we do a complete software upgrade from 4.2 to 8.2 on the Cisco UC520 will this cause other problems within the system and current phones?
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...