Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 83

An administrator is configuring a new deployment using Cisco Unified CME. The SCCP phones register without any issues, but SIP phones are not registering. Assume that all other configuration is valid. Which code allows SIP phones to register to Cisco UCME?

Answer options

• A. voice service voip allow-connections sip to h323
• B. voice service voip sip bind media source-interface Vlan100
• C. voice service voip sip bind control source-interface Vlan100
• D. voice service voip sip registrar server expires max 600 min 60

Correct answer: D

Explanation

The correct answer is D because it configures the SIP registrar to manage registration expiration times, which is essential for SIP phones to successfully register. Options A, B, and C do not provide the necessary configuration for the SIP registrar, thus they do not resolve the registration issue for SIP phones.