Implementing Cisco IP Telephony and Video Part 2 (CIPTV2, legacy) — Question 3

You have deployed a Cisco 2821 ISR to perform as an SRST voice gateway at a remote site. During a network failure between the remote site and the central office, some of the phones located at the remote site are unable to make phone calls. Which two options are potential causes of the problem? (Choose two.)

Answer options

• A. The site has exceeded the number of SRST endpoints supported by the voice gateway.
• B. The ccm-manager fallback command is configured incorrectly on the voice gateway.
• C. Phones at the remote site are assigned to the incorrect device pool.
• D. The ccm-manager fallback-mgcp command is configured incorrectly on the voice gateway.
• E. The site has exceeded the number of simultaneous calls allowed in SRST mode.

Correct answer: A, E

Explanation

Option A is correct because exceeding the number of supported SRST endpoints can prevent phones from making calls. Option E is also correct as exceeding the limit of simultaneous calls in SRST mode can result in call failures. Options B, C, and D do not directly relate to the number of endpoints or concurrent calls, which are critical for SRST functionality.