What is Cisco CME?
Considering this, what is CME in networking?
Cisco Unified Communications Manager Express (CME) is the feature that supports IP telephony in Cisco ISR routers. Depending on the router you use, CME can support up to 450 IP Phones.
Furthermore, what is Cisco SME? Cisco ® Unified Communications Manager Session Management Edition (SME) is a key enterprise transformation solution that builds upon Cisco Unified Communications Manager's heritage of multi-protocol support (SIP, SCCP, H. SIG, MGCP) and its native SIP back-to-back user agent (B2BUA) capabilities.
Similarly one may ask, what is an ephone?
An ephone is an IP phone that is connected to your voice network. Ephone-dn are the extension numbers that you can assign to buttons on you ephone.
How does Cisco Call Manager work?
For call set up, teardown and supplementary service work, CUCM uses SIP or SCCP to communicate with Cisco IP Phones. Use the Real-Time Transport Protocol (RTP) to deliver audio, after a call has been made, media exchange occurs directly between the Cisco IP Phones across the IP network.