What is SRST in Cucm?
Survivable Remote Site Telephony (SRST) is a Cisco Unified Communications Manager (CUCM) call processing backup mechanism that allows Cisco IP phones to register to a Cisco router.
What is SRST EP?
Customers are encouraged to migrate to the current Cisco Unified Survivable Remote Site Telephony (SRST) Smart Licensing offer, by ordering a SRST-EP license for each configured device. The program is open to all business users of Cisco equipment and its associated brands and subsidiaries.
What is a Cisco cube?
Cisco Unified Border Element (CUBE) is a unified communications border element, providing voice and video connectivity between the enterprise IP network and service provider network. It is similar to a voice gateway, except for the replacement of physical voice trunks with an IP connection.
Does SCCP use RTP?
A SCCP client uses TCP/IP to communicate with one or more Call Manager applications in a network. It uses the Real-time Transport Protocol (RTP) over UDP for the traffic (real-time audio stream) with other Skinny clients or an H. 323 terminal.
What is the difference between Cisco Unified SRST and unified e SRST?
Both Cisco Unified SRST and Unified E-SRST support Cisco Unified Communications Manager (UCM) and Cisco Business Edition solutions.
Where to find Cisco Unified survivable remote site telephony ( SRST )?
For more information about Cisco Unified Survivable Remote Site Telephony (SRST), visit https://www.cisco.com/go/srst or contact your local Cisco account representative. Added information related to Catalyst Edge router platforms.
How to create a SRST reference in Cisco communications manager?
If you have Cisco Communications Manager V3.3 or later versions, you must create an SRST reference and apply it to a device pool. An SRST reference is the IP address of the Cisco Unified SRST Router. From any page in Cisco Unified Communications Manager, click System and SRST .
How does Cisco Unified SRST router support SIP?
The Cisco Unified SRST router uses SIP registrar services to support SIP phones and the proprietary SCCP to register the SCCP phones.