350-801 · Question #42
Which design restriction applies to Cisco Unified Communications Manager Session Management Edition clustering over the WAN deployment with extended round-trip times in Cisco Unified CM 9.1 and…
The correct answer is B. Only SIP trunk is supported. This question asks about a specific design restriction for Cisco Unified Communications Manager Session Management Edition (SME) clustering deployed over a WAN, particularly regarding supported trunk types.
Question
Which design restriction applies to Cisco Unified Communications Manager Session Management Edition clustering over the WAN deployment with extended round-trip times in Cisco Unified CM 9.1 and later releases?
Options
- ASIP and H.323 intercluster trunks are supported.
- BOnly SIP trunk is supported.
- CSIP trunks and H.323 gateways are supported.
- DA minimum of 1.544 Mb/s bandwidth is required for all traffic between any two nodes in the
- EOnly RSVP agents can be configured and registered to the SME cluster as media resources.
How the community answered
(28 responses)- B89% (25)
- D4% (1)
- E7% (2)
Why each option
This question asks about a specific design restriction for Cisco Unified Communications Manager Session Management Edition (SME) clustering deployed over a WAN, particularly regarding supported trunk types.
This is incorrect because H.323 intercluster trunks are not supported for SME clustering over a WAN.
For Cisco Unified Communications Manager Session Management Edition (SME) clustering over a WAN with extended round-trip times, only SIP trunks are supported for intercluster communication. H.323 intercluster trunks are explicitly not supported in this deployment model due to their sensitivity to latency and network conditions over a WAN.
H.323 gateways are different from H.323 intercluster trunks; while H.323 gateways might be used, H.323 intercluster trunks are specifically restricted for WAN deployments of SME.
While bandwidth is important, a fixed 1.544 Mb/s (T1) is not the *only* or most critical design restriction for SME WAN clusters, and the question is specifically about *design restrictions* related to trunk types.
This is a specific detail about media resources and not the primary design restriction regarding trunk types for SME over WAN.
Concept tested: CUCM Session Management Edition WAN deployment restrictions
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab12/collab12/cmcallproc.html
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