Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 90

An administrator deployed a third-party H.323 gateway in a voice environment, but users report call failures when using features like call hold or call transfer. What are two reasons that these features fail? (Choose two.)

Answer options

• A. The CSS of the transfer initiating line does not contain the partition of the supplementary feature extension (DirectTransfer or MoH Number).
• B. The MTP that is configured for use within the H.323 gateway configuration is configured as a trusted source, but the third-party gateway does not trust the signing root CA certificate of the MTP certificate.
• C. The MTP does not support the negotiated codec, and media renegotiating during the call is not supported.
• D. The Media Resource Group List of the H.323 gateway contains only transcoders and conference bridges but no MTP.
• E. The third-party gateway does not support supplementary features, so Media Termination Point (MTP) must be inserted.

Correct answer: C, D

Explanation

The correct answers are C and D because if the MTP does not support the negotiated codec or if the Media Resource Group List does not include an MTP, features like call hold and transfer will not function correctly. Options A, B, and E are less relevant as they pertain to specific configurations that do not directly cause failures in those particular features.