Issues with content sharing on Cisco MXP Endpoints

Issue: MXP device cannot receive content unless it shares first. Applies to SIP calls only.

Cause: If the endpoint is not the first presenter, it does not punch a hole in the firewall for content sharing stream and thus cannot also receive the content. This has been registered as two bugs in Cisco's F9 software: 

  1. CSCud35907, "F9 breaks BFCP TCP" (no planned release to fix this and verified that there is no content seen on MXP with F8.2, so not only F9 is affected)
  2. CSCty51581, "Movi rings MXP and BFCP fails"

Workaround: As the MXP is EOL, we do not expect Cisco to fix these bugs. Recommended on single-screen MXP systems, but can be used on dual-screen systems as well: Turn off H.239 in the Presentation settings (and continue to use SIP). This will force the content data into the main video stream, and the user will lose dual streams capability.

 

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