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What is FAC or Forced Authorization Code in CUCM?

What is Forced Authorization code or FAC in CUCM? Forced Authorization Code (FAC) is a way to implement call restriction while making a call. Forced Authorization Code requires user to enter a code or PIN before the call is connected. The primary function of Forced

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What is SRST? Difference between SRST and E-SRST

Survivable Remote Site Telephony (SRST) Normally Cisco IP Phones registers to CUCM whether you use Multi-site with Centralized/Distributed Call Processing Model, Clustering over IP WAN or Single Site Deployment. In the event of WAN failure or the primary, secondary and tertiary CUCM server goes down,

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Cisco CUCM Deployment Models

Types of CUCM Deployment Models There are basically four types of deployment models in Cisco Unified Communications Manager architecture. They are as follows: Single Site Multisite with Centralised Call-Processing Multisite with Distributed Call-Processing Clustering Over the IP WAN Single Site Deployment Model: This type of

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Step by Step Installation of Asterisk / Elastix

Asterisk or Elastix is an open source Unified Communications application which enables you to build your own VoIP system or even business with the most advanced features. Asterisk enables users to make calls using VoIP and PSTN like BRI, PRI, SIP Trunks etc. Asterisk provide

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How to make Windows as NTP Server?

Making Windows as a NTP Server While installing Cisco Unified Communications Manager, Cisco Unity Connection, Cisco Unified Contact Center Express, Cisco MediaSense etc, you need to have a valid NTP Server internally or may point it to an external network. Most of the organization will