210-065 · Question #400
A voice engineer is setting up a Cisco 2951 Integrated Services Router with Cisco Unified Communications Manager Express. To enable voice features for SIP endpoints, which command the engineer enter?
The correct answer is C. tele phony-service. The 'telephony-service' command is the primary IOS command that enters CUCME configuration mode, enabling the router to process calls and manage registered voice endpoints.
Question
A voice engineer is setting up a Cisco 2951 Integrated Services Router with Cisco Unified Communications Manager Express. To enable voice features for SIP endpoints, which command the engineer enter?
Options
- Avoice service voip
- Bip voice
- Ctele phony-service
- Dvoice vlan
How the community answered
(23 responses)- B4% (1)
- C91% (21)
- D4% (1)
Why each option
The 'telephony-service' command is the primary IOS command that enters CUCME configuration mode, enabling the router to process calls and manage registered voice endpoints.
'voice service voip' configures global VoIP and dial-peer behavior at the service level but does not activate the CUCME feature set or its endpoint management capabilities.
'ip voice' is not a valid Cisco IOS command for enabling CUCME or any SIP endpoint support on an ISR.
Entering 'telephony-service' on a Cisco ISR activates Cisco Unified Communications Manager Express and opens the CME configuration context where critical parameters such as max-ephones, source-address, and related voice features are defined. Without this command, the router cannot function as a call-processing system for any endpoint type, including SIP phones.
'voice vlan' is a Layer 2 switchport command used to tag a dedicated VLAN for IP phone traffic and has no role in enabling CUCME voice features.
Concept tested: CUCME telephony-service activation command on ISR
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeadm.html
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