Cisco Unified Communications Manager is being integrated with Cisco Unity Connection using SCCP. What should the Device Name Prefix be on the Cisco Unity Connection server if the Cisco Unified…

Using 'CiscoUM1' alone as the prefix would generate port names like 'CiscoUM11' and 'CiscoUM12', which do not match the expected CUCM port name format.

'CUCM' is unrelated to the Unity Connection server name 'CiscoUM1' and would generate port names that do not exist in CUCM.

'CUCM-1' also bears no relation to the CiscoUM1 server identifier and would not produce matching CUCM port names.

Cisco Unity Connection generates SCCP voice port device names by appending an incrementing number to the Device Name Prefix (e.g., CiscoUM1-VI1, CiscoUM1-VI2). When CUCM voice mail ports are named using the base name 'CiscoUM1', the Unity Connection prefix 'CiscoUM1-VI' produces device names that exactly match those CUCM port names. The 'VI' suffix stands for Voice Integration and is the required separator between the server name and the port number index.

'CUCM-V1' does not derive from the CiscoUM1 naming convention and would not align with any configured CUCM port names.

'CiscoUM1-V1' contains the digit '1' where the letter 'I' is required - the correct suffix is 'VI' (Voice Integration), making this prefix generate non-matching port names.