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Collaboration, Voice & AV · Intermediate

Cisco Unified Communications Manager Express (CME)

IOS-based call control that runs on Cisco ISR routers for small sites, providing phone registration and PBX features.

Definition

CME turns a router into a self-contained call processing system for smaller offices, configured with telephony-service (SCCP) or voice register global (SIP) commands. It supports ephone-dn or voice register dn lines, hunt groups, auto attendant, and integration with voicemail. Its code is also the basis of Unified SRST.

Example

telephony-service / max-ephones 24 / ip source-address 10.1.1.1 port 2000 configures CME for SCCP phones.

Exam tip

CME and SRST share configuration modes; Unified SRST is CME code operating in SRST mode.

Related terms