Author: Chris

Here is Cisco basic NAT configuration and samples.   1. Basic configuration   – Access-list for pool of participant network ex) access-list 100 permit ip…

It is very common things in my world failing FAN on Cisco 2800 series router. You could buy FAN module thru ebay, but temperature is…

Here is how to Install additional language for Cisco Unity Express on SRE module. While we were working Cisco Unity Express Auto Attendant configuration, we…

Here is How to install Cisco Unity Express on SRE-300-K9 module. Note; Cisco 2921, IOS version 15.3(2)T4 Cisco Unified Call Manager Express : Version 9.5…

This article will contain Cisco Unity Express Basic Setup and Troubleshooting tips. Notes; Cisco 2921, IOS version 15.3(2)T4 Cisco Unified Call Manager Express : Version 9.5…

Here is simple demonstration for How to replace permanent license with evaluation license. (ex Voice mail box)   New 5 voicemail box license has been…

When you are troubleshooting a dial-peer issue on Cisco Unified Call Manager Express, understanding of how dial-peer works is important. Outbound dial-peer matching is completed…

Here is output of how to change call-agent on Cisco Unity Express   CUE-SRE# sh call-agent Call-agent:         CUCM   CUE-SRE# call-agent ?   ccm               Cisco…

Notes; Cisco 2921, IOS version 15.3(2)T4 Cisco Unified Call Manager Express : Version 9.5 Cisco Unity Express : 8.6.9 SRE-300-K9   1. From CME Router  …

  If you have a lot of devices on your network, centralized authentication server is always handy for efficient control of devices, convenient and scalable. …

    Cisc ATA186 is very simple and useful Cisco ATA186 is very simple and useful device for helping analog phone to connect VoIP system….

CUCM install was fairly easy, but first time booting the CUCM system. We got below errors. Few suggestion was found in the forum and VoIP…