Due to service provider restriction, Cisco UCM cannot send video in the SDP. Which two options on Cisco UCM are configured to suppress video in the SDP in outgoing invites? (Choose two.)
A.
Set Video Bandwidth in the Region settings to 0.
B.
Check the Send send-receive SDP in mid-call INVITE check box on the SIP trunk SIP profile.
C.
Change the Video Capabilities dropdown on the endpoint to Disabled.
D.
Add the audio forced command to voice service VoIP on the Cisco Unified Border Element.
E.
Check the Retry Video Call as Audio on the SIP trunk.
Why would E be correct? It isnt configure TO SUPPRESS VIDEO. Its configured to offer an audio-only fallback when Video fails. Theoretically you can just leave it off and it wont matter for the goal of suppressing video.
On the other hand i dont know of such a dropdown as "Video Capabilities" on Video Endpoints on CUCM. So in Cisco Fashion it probably is A & E.
A & E. The reason is it has to be only in CUCM per the question. You would create a specific Region relationship for the Device Pool applied to the trunk that cannot handle video and thus change the Maximum Video Bandwidth to 0 while setting retry a video call as audio on the Phone Configuration (default setting is this is already checked).
The question clear says - what is done on the CUCM- So, Try Video as Audio call- is one option.. setting bandwidth to 0 on region is another option. Drop down option on the Phone - is on the phone- so ignore.. anything we do on the router should be ignored.
A and C
B - is not related to video
C - I checked 9971 phone and there is definetly a dropdown about video capabilities .
D - This change is done in CUBE, not the CUCM
E will not disable video but instead will but mitigate consequence if its not working
Your right you can modify the video behaviour on some endpoints but that would completely disable video for those device, eg also disable video for internal calls, etc. If you leave video enabled on the endpint and then set the trunk to Retry Video Call as Audio the call would be established as audio call with no video codec negotiation.
I think it should be A and C. Answer A is clear. but C; Change the Video Capabilities dropdown on the endpoint to Disabled, will also bring no video. The answer E (Retry the call) is only when Vido will not work....
I would go with A and D.
Support for Video Suppression
Cisco IOS 15.6(2)T
Cisco IOS XE Denali 16.3.1
This feature allows pass-through of only audio and application (for T.38 Fax) media types and drops all other media types in SDP.
The following commands are introduced: audio forced , voice-class sip audio forced
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/voi-audio-forced.html
On a second thought, the question ask what changes are done in CUCM, not the CUBE. So yeah, it may be A and E then.
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