Cisco WS-SVC-CMM-6E1= Datasheet download pdf (Page 4)

Data Sheet

Cisco Unified Survivable Remote Site Telephony

Cisco Unified Survivable Remote Site Telephony (SRST) allows the Cisco CMM to temporarily

manage connections for Cisco Unified IP phones when a connection to a Cisco Unified

Communications Manager is unavailable. The Cisco CMM provides SRST for up to 720 IP phones

and a maximum of 1024 Ephone-DNs.

Protocols

The Cisco CMM can operate as a MGCP, H.323, or SIP device under control of the Cisco Unified

CallManager.

The following interface types are supported in MGCP mode:

●

T1/E1 Primary Rate Interface (PRI)

●

T1 channel associated signaling (CAS)

●

FXS

When operating in this mode, the Cisco CMM becomes a stateless client to the Cisco Unified

CallManager, giving it full control of enhanced management and calling features.

The interface types supported in H.323 mode follow:

●

T1/E1 PRI

●

T1 CAS

●

E1-R2

●

FXS

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