350-801 · Question #150
A company deploys centralized cisco ucm architecture for a hub location and two remote sites. - The company has only one ITSP connection at the hub connection, and ITSP supports only G.711 calls…
The correct answer is C. configure the hardware transcoder on the hub location router. A transcoder is needed because Remote Site B uses G.729 internally, but the ITSP at the hub location only accepts G.711. When a call from Site B reaches the hub and needs to exit to the PSTN, the media stream must be transcoded from G.729 to G.711. Placing the hardware…
Question
A company deploys centralized cisco ucm architecture for a hub location and two remote sites.
- The company has only one ITSP connection at the hub connection, and
ITSP supports only G.711 calls
- Remote site A has a 1-Gbps fiber connection to the hub connection and
calls to and from remote side A use G.711 codec
- Remote site B has a 1 T1 connection to the hub location and calls to
and from remote site B use G.729 codec Based on the provided guidance, a Cisco voice engineer must design media resource management for the customer. What is the method that needs to be followed?
Options
- Aconfigure the hardware transcoder on the site B router.
- Bconfigure the hardware transcoder on the site A router.
- Cconfigure the hardware transcoder on the hub location router.
- Dconfigure the software transcoder on Cisco UCM to support voice calls to and from both remote
How the community answered
(43 responses)- A2% (1)
- B14% (6)
- C79% (34)
- D5% (2)
Explanation
A transcoder is needed because Remote Site B uses G.729 internally, but the ITSP at the hub location only accepts G.711. When a call from Site B reaches the hub and needs to exit to the PSTN, the media stream must be transcoded from G.729 to G.711. Placing the hardware transcoder at the hub router is the correct design because that is where the codec mismatch occurs-the G.729 WAN stream meets the G.711 ITSP connection. Placing it at Site A or Site B would not solve the mismatch at the ITSP interface, and a software transcoder on UCM is less efficient and not preferred when hardware resources are available at the point of mismatch.
Topics
Community Discussion
No community discussion yet for this question.