300-085 · Question #252
Which two are required when enabling BFCP on Cisco Jabber clients with Cisco Expressway? (Choose two.)
The correct answer is B. Expressway Zone C. a custom BFCP enabled SIP profile configured in Cisco Unified CM. Enabling BFCP on Cisco Jabber clients through Cisco Expressway requires both a properly configured Expressway Zone and a BFCP-enabled SIP profile in Cisco Unified CM. These two components together allow the binary floor control signaling to traverse the Expressway infrastructure.
Question
Which two are required when enabling BFCP on Cisco Jabber clients with Cisco Expressway? (Choose two.)
Options
- ASIP UDP/BFC filter mode set to On
- BExpressway Zone
- Ca custom BFCP enabled SIP profile configured in Cisco Unified CM
- DExpressway Load Balancing
- ETLS connectivity between Expressway and Cisco Unified CM
How the community answered
(19 responses)- A16% (3)
- B68% (13)
- D11% (2)
- E5% (1)
Why each option
Enabling BFCP on Cisco Jabber clients through Cisco Expressway requires both a properly configured Expressway Zone and a BFCP-enabled SIP profile in Cisco Unified CM. These two components together allow the binary floor control signaling to traverse the Expressway infrastructure.
There is no standard Cisco Expressway setting called 'SIP UDP/BFC filter mode' - this is not a real configuration option in the Expressway interface.
An Expressway Zone must be configured to define how traffic is routed between Jabber clients and the collaboration infrastructure, including BFCP signaling. Without the zone, Expressway has no routing context for the BFCP negotiation. This is a foundational requirement for any Expressway-mediated collaboration feature.
A custom SIP profile with BFCP enabled must be applied to the SIP trunk or device configuration in Cisco Unified CM, because BFCP is not enabled by default. The SIP profile tells CUCM to include the BFCP channel negotiation in SIP offer/answer exchanges with Jabber endpoints.
Expressway Load Balancing is a high-availability feature unrelated to enabling BFCP content sharing capability on Jabber clients.
TLS connectivity between Expressway and CUCM is a security best practice for SIP trunks but is not specifically required as a prerequisite for enabling BFCP functionality.
Concept tested: BFCP enablement requirements on Cisco Expressway with Jabber
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14/exwy_b_cisco-expressway-basic-configuration.html
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