What is CME SRST?

What is CME SRST?

Overview. C3925-CME-SRST/K9 is a Cisco 3925 router bundled with Voice Bundle w/ PVDM3-64, FL-CME-SRST-25, UC License PAK. When Unified CME is used in SRST mode, it provides more call processing features for the IP phones than those are available with the SRST. feature on a router.

What is SRST used for?

Cisco Unified SRST enables routers to provide basic call-handling support for Cisco Unified IP Phones when they lose connection to remote primary, secondary, and tertiary CUCM servers or when the WAN connection is down.

How do I enable CME SRST?

It will cover how to activate the CME/SRST feature license.

1. Go to global configuration mode. Issue the config t command.
2. Issue the telephony-service command.
3. Issue the max-dn and max-ephone commands.

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.

How do I enable Srst on Cisco router?

Step 1 Log into Cisco Unified CM Administration and choose System > SRST. Step 2 Click Add New. their configuration options, see the system Online Help. Step 4 Click Save.

What port does SCCP use?

TCP port 2443
Secure SCCP uses TCP port 2443.

What is SRST and MGCP fall back?

srst = Survivable Remote Telephony, when the IP Phone looses connectivity with cm, the phone registers with the default gateway. mgcp fallback = defines the fail over server in the call manager cluster.

What is Expressway Cisco?

Cisco Expressway is a powerful gateway solution specifically designed for comprehensive collaboration services provided through Cisco Unified Communications Manager, Cisco Business Edition, or Cisco Hosted Collaboration Solution (HCS).

What is Cisco Unified Survivable Remote Site Telephony?

Cisco Unified SRST or Unified E-SRST is a critical component of a centralized call-processing architecture in which a Cisco Unified Communications Manager cluster, located at a central site, provides telephony services for all sites of an organization.

What is SRST mode?

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.

When to use CME / SRST on a router?

The CME/SRST feature is accessible only once the uck9 technology-package license has been accepted and the router has been reloaded. If the uck9 technology-package license is not installed or the router not reloaded, no voice related commands will be accepted by the command line.

How does CME-SRST license activation on Cisco isr-g2 router?

The purpose of this document is to explain how license activation works on a Cisco ISR-G2 (19xx/29xx/39xx) router. It will detail how to install the license and verify that it has been actived correctly. How does Licensing for CME/SRST work?

How does licensing for CME-SRST license activation work?

It will detail how to install the license and verify that it has been actived correctly. How does Licensing for CME/SRST work? The CME/SRST feature is accessible only once the uck9 technology-package license has been accepted and the router has been reloaded.