300-085 · Question #271
How does Cisco TMS prioritize call protocols?
The correct answer is D. It prioritizes SIP over H.323, zones specify IP or ISDN. Cisco TMS prioritizes SIP over H.323, and zones are individually configured to specify IP or ISDN - there is no system-wide transport default applied across all zones.
Question
How does Cisco TMS prioritize call protocols?
Options
- AIt prioritizes H.323 over SIP, and zones default is IP over ISDN
- BIt prioritizes SIP over H.323, and zones default is ISDN over IP.
- CIt prioritizes SIP over H.323, zones default is IP over ISDN.
- DIt prioritizes SIP over H.323, zones specify IP or ISDN.
How the community answered
(39 responses)- B3% (1)
- C3% (1)
- D95% (37)
Why each option
Cisco TMS prioritizes SIP over H.323, and zones are individually configured to specify IP or ISDN - there is no system-wide transport default applied across all zones.
Cisco TMS does not prioritize H.323 over SIP; SIP is the higher-priority protocol in TMS call routing logic.
While SIP is correctly prioritized over H.323, the claim that zones default to ISDN over IP is incorrect - TMS zones have no global ISDN default and instead require explicit per-zone transport configuration.
This option incorrectly describes zones as defaulting to IP over ISDN; TMS zones carry no global transport default and must each be individually configured to specify IP or ISDN.
Cisco TMS uses SIP as the preferred call protocol over H.323 when both are available on a registered endpoint. Zone configuration in TMS requires each zone to explicitly specify whether it uses IP or ISDN connectivity rather than inheriting a global default, meaning each zone carries its own independently defined transport preference.
Concept tested: Cisco TMS call protocol prioritization and zone transport configuration
Source: https://www.cisco.com/c/en/us/support/conferencing/telepresence-management-suite-tms/products-maintenance-guides-list.html
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