Category Archives: Cisco

Integrating CUCM with Asterisk using SIP Trunk

Are you working in a scenario where you have Cisco Unified Communications Manager and you would like to install Asterisk and integrate with it? There are various reason why you may need Asterisk: For example – You may want to do IVR setup/ Agent Call

Installing X-Lite Softphone in your Windows PC

Planning to install XLite softphone in your Windows PC? X-Lite softphone is freeware softphone which provides features like voice, video, IM etc. This product is from counterpath. You can use X-Lite with CUCM and Asterisk as well. This is completely SIP based Softphone. The first

Installing 3CX Softphone in your Windows PC

Install 3CX Softphone in your PC 3CX Phone is a phone that is provided by a company called 3CX. 3CX developers developed this phone so that their customer can use this phone and register to 3CX devices. But the great advantage of using this phone

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

What are Transcoders in Cisco IP Telephony? Use of Transcoder?

What is a Transcoder or XCode in Cisco IP Telephony? What are the uses of Transcoder? Transcoders are hardware devices which takes the media stream of one codec and converts it from one compression type to another compression type. Cisco Unified Communications Manager (CUCM) invokes

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,

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