An engineer is implementing survivability for a collaboration environment. The environment is utilizing a centralized Cisco UCM at the headquarters and Cisco IOS-XE gateways in the remote branches. Which action must the engineer take to enable both shared lines and B-ACD for SIP branch phones during a WAN outage?
Answer(s): D
To enable shared lines and B-ACD support for SIP phones during a WAN outage, the engineer must configure Enhanced SRST (eSRST). This is done using:telephony-service mode esrstThis enables eSRST mode, which provides more advanced call control features (like shared lines and B-ACD) during failover scenarios in SIP-based branch deployments.
An SRST site must use pickup functionality on the Chicago remote site to allow the users to take incoming calls. The pickup command is configured under the call manager-fallback section on the SRST router. What are two results of that configuration? (Choose two.)
Answer(s): B,D
An administrator is attempting to set up redundancy to allow users to make calls even if all Cisco UCM nodes go down or are unreachable by the IP phones. Which feature must the administrator configure to accomplish this goal?
Survivable Remote Site Telephony (SRST) allows IP phones at remote sites to continue placing and receiving calls through the local gateway even if all Cisco UCM servers become unreachable. SRST provides local call control backup, ensuring call continuity during WAN or UCM outages.
An engineer is configuring Cisco UCME to support SIP endpoints. The engineer wants to limit the system to 20 SIP phones and 50 directory numbers. Which code completes this configuration?
When configuring Cisco UCME for SIP endpoints, the correct configuration is done under the voice register global context. In this mode:1. max-ephone limits the number of SIP phones.2. max-dn limits the number of directory numbers.This configuration is specifically for SIP phones, not SCCP, which would instead use telephony-service.
Refer to the exhibit. An engineer is implementing the Cisco UCME and must set up a dial plan for the 7961 SIP phones to recognize digit strings dialed by users. Which code snippet completes the configuration?
Answer(s): C
To make SIP phones in Cisco Unified CME recognize and apply the digit patterns defined under voice register dialplan 1, the dial plan must be explicitly associated with the SIP phone pool. The command dialplan 1 under the voice register pool links the defined dial plan to the phones, enabling them to collect and interpret user- dialed digit strings correctly.
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