When using VPIM Networking for messaging between Cisco Unity servers in different directories, which two factors should be considered for Audio Format Conversion settings? (Choose two.)
A. network bandwidth between the local and remote Cisco Unity servers
B. traffic volume of messages
C. network latency between the local and remote Cisco Unity servers
D. Audio Format of the outbound message
E. DSCP flags on the packet
Answer is A & D
Audio Format Considerations
The Audio Format Conversion settings for the VPIM location (on the Networking > Edit VPIM Location page in Cisco Unity Connection Administration) allow you to control the audio format of outgoing and incoming VPIM messages, as follows:
Incoming Messages—You can set whether incoming VPIM messages are stored in the format in which they were sent, or converted to the audio format that Unity Connection uses for recording messages.
Outbound Messages—You can set whether outbound VPIM messages are sent in the format in which they were recorded, or converted to the G.726 codec.
To make decisions about these settings, consider the following:
– The audio format that the local Unity Connection server uses for recording and playing voice messages.
– The audio format in which the remote voice messaging system can send and receive VPIM messages. Some voice messaging systems support only the G.726 format for VPIM messages, but you must consult the documentation of the remote voice messaging server to be sure.
– The network bandwidth.
That was my initial thinking too but I found this:
When using VPIM Networking for messaging between Cisco Unity servers in different directories, the Audio Format Conversion Settings for outbound and incoming messages need to be coordinated on the Cisco Unity servers to avoid unnecessary conversions. When making decisions about the conversion settings:
•Consider the network bandwidth between the local and remote Cisco Unity servers, and the volume of message traffic.
Source: https://www.cisco.com/en/US/docs/voice_ip_comm/unity/404/networking/guide/ex/net0550.html#wp1042130
I agree, I also had impression about A and D, but after reading Jacks document I’ve changed my mind.
I would go with AB.