Implementing Cisco Collaboration Devices (CICD, legacy) — Question 69

IP WAN failure has occurred. Which two configurations must be made to allow calls to or from an IP phone at a branch location to complete to a destination outside of that branch? (Choose two.)

Answer options

• A. Survivable Remote Site Telephony is configured on the branch router.
• B. LAN failover configuration is set to Survivable Remote Site Telephony.
• C. Call Forward UnRegistered option is configured on each branch phone profile.
• D. POTS WAN failover is set to Survivable Remote Site Telephony.
• E. An ISDN is configured as a primary survivable backup site CE

Correct answer:

Explanation

The correct answers are A and C. Survivable Remote Site Telephony must be configured on the branch router to ensure call processing can continue during an IP WAN failure (A). Additionally, enabling the Call Forward UnRegistered option on each branch phone allows calls to be rerouted when the phone is not registered (C). Options B, D, and E do not directly address the requirements for call completion during WAN failure.