Due to service provider restriction. Cisco UCM cannot send video in the SDR Which two options on Cisco UCM are configured to suppress video in the…

To prevent Cisco Unified Communications Manager (UCM) from including video media lines in the Session Description Protocol (SDP) of an outgoing INVITE, administrators can use several methods. One effective approach is to configure Regions. By setting the "Max Video Call Bit Rate" for the relationship between two regions to None (0 kb/s), UCM will not allocate any bandwidth for video, thereby suppressing the video component in the SDP offer.

Alternatively, video can be disabled on a per-endpoint basis. In the device's Phone Configuration page within UCM, setting the "Video Capabilities" parameter to "Disabled" instructs UCM that the device is not video-capable. Consequently, UCM will generate audio-only calls from this endpoint, omitting video from the outgoing SDP.

A. The audio forced command is configured on a Cisco Unified Border Element (CUBE), not on Cisco UCM as the question specifies.

B. The "Retry Video Call as Audio" option is a fallback mechanism. It sends an audio-only INVITE only after an initial video call attempt fails, it does not suppress video in the first INVITE.

E. The "Send send-receive SDP in mid-call INVITE" setting affects SDP handling for mid-call events like hold or resume, not the initial call setup INVITE.

1. Cisco Unified Communications Manager Administration Guide, Release 12.5(1)SU1, "Region configuration" section.

Reference: In the "Configure Region" topic, the description for "Max Video Call Bit Rate" states: "Use the settings in this field to specify the maximum video bandwidth that is used for video calls... When you choose None, you allocate 0 kb/s for video, so that the call becomes an audio-only call." This supports option C.

2. Cisco Unified Communications Manager Administration Guide, Release 12.5(1)SU1, "Phone configuration" section.

Reference: In the "Configure IP Phones" topic, under the "Product Specific Configuration Layout" section for various video-capable phone models, the "Video Capabilities" field is described. Setting this to "Disabled" prevents the phone from making or receiving video calls, which supports option D.

3. Cisco Unified Communications Manager System Configuration Guide, Release 12.5(1)SU1, "SIP Trunk Configuration" section.

Reference: The description for the "Retry Video Call as Audio" checkbox explains it is used to "allow Cisco Unified Communications Manager to retry a video call as an audio call." This confirms it is a fallback mechanism, making option B incorrect for the initial INVITE.