What is SRST used for?

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.

Whats SRST?

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 reference in Cucm?

CUCM SRST configuration is similar for both Cisco Unified SRST or Cisco Unified CME-based SRST. The IOS router must be defined as an SRST reference in CUCM. Then this SRST reference consecutively needs to be added to the appropriate device pool to enable the phones at remote sites to leverage SRST.

How do I activate my CME SRST license?

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.

How do I find my SRST license on my router?

1. Purpose. The purpose of this document is to explain how license activation works on a Cisco ISR-G2 (19xx/29xx/39xx) router.
2. Go to global configuration mode.
3. Issue the telephony-service command.
4. Issue the max-dn and max-ephone commands.
5. The output should show the License State as Active, In Use.

What is the difference between voice gateway and cube?

A CUBE is primarily an IP-to-IP gateway that helps connect two or more similar or dissimilar networks, while offering a host of features that a regular voice gateway cannot offer. For example, a CUBE router can connect an H. 323 network to SIP network or vice-versa, or a SIP network to a SIP provider.

What does a cube router do?

Cisco Unified Border Element (CUBE) bridges voice and video connectivity between two separate VoIP networks. It is similar to a traditional voice gateway, except for the replacement of physical voice trunks with an IP connection.

What is Cisco CUBE license?

CUBE licensing is, in all cases, a per-session license, where a “session” is defined as a two-way call transiting CUBE, either for signaling, media or both, regardless of the number of media sessions involved in that call. As such, there is no additional licensing needed for calls with media forking for call recording.

What is a Cisco CUBE used for?

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.

What is difference between voice gateway and cube?

How many cube licenses do I need?

The number of licenses should be equal to the maximum capacity of the enterprise. For example: At peak time if you have 100 agents responding to customer calls, each call has two active sessions.

How do you set up a cube?

CUBE Configuration Step-By-Step. Part 1

1. 1 Step 1: ITSP. Know your enemy.
2. 2 Step 2: Architect CUBE. Prepare yourself.
3. 3 Step 3: CUCM. Stay on the beaten track.
4. 4 Step 4: CUBE Configuration. Start globally.
5. 5 Step 5: CUBE Configuration. Build the foundations.
6. 6 Step 6: CUBE Authentication and Registration.

Does Cisco need cube?

A: Not Necessary. It depends on the voice traffic you want to route using CUBE. For large enterprise its recommended to use standalone device for CUBE functionality. If the traffic is not high you can run other services along with the CUBE application for voice on the same platform simultaneously.