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Collaboration Engineer

All things Technology – Posts to save for when you need them

Tag: CUCM

Written by Andres SarmientoAugust 3, 2018August 3, 2018

Zero Downtime Upgrades – An upgrade approach to avoid late nights

Let’s see, it has been a while since the last time you heard from me, but this time I will spare you the excuse! What is a Zero Downtime Upgrade? This is an upgrade where no matter from which version of VOS (CUCM, UNITY, and UCCX) you are coming from can be done with very […]

Written by Andres SarmientoFebruary 9, 2018May 29, 2018

The Anatomy of a Call Recording Service – Cisco Unified Communications Manager

Call recording is an interesting topic for me and it’s sometimes hard to understand, but It’s easy when you break it down to get what it is all about. My experience varies from different vendors and most of it comes to the same place, at least when preparing CUCM for Recording services. This post is […]

Written by Andres SarmientoDecember 28, 2017May 29, 2018

CUCM – Moving CUCM Publisher – Change IP address

Where do we begin with this one? – Here is your ticket and before you go to the next section of this post, make sure you have a quick answer. The Ticket/Challenge **Trying not to call it a problem! Your client needs to move from a Datacenter to a new location. You need to move […]

Written by Andres SarmientoJanuary 30, 2017February 15, 2017

Rebuilding CUCM from an Export – Common issues and solutions

Having to rebuild CUCM can be a task that really needs planning and patience 🙂

Written by Andres SarmientoNovember 16, 2016February 15, 2017

Auto Registration CUCM 11.5 (Video)

This is a video I created, showing how auto registration works in CUCM 11.5 Not too much really, but I think I will get better as I start working more in my editing skills and being a bit less nervous Enjoy About the Author: Andres Sarmiento, CCIE # 53520 (Collaboration) With more than 13 years […]

Written by Andres SarmientoJuly 20, 2016February 15, 2017

Andres Sarmiento CCIE # 53520 – 4th Time was the charm – CCIE Collaboration, Passing the Lab and recommendations!

Passing the CCIE Collaboration Lab was really hard and a very nice and entertaining experience, which I feel very happy to say that I completed the challenge!! I will be very short on this post and will make it technical and a bit emotional for the people out there that may benefit from it at […]

Written by Andres SarmientoJune 15, 2016February 15, 2017

CUCM 11.5 is here and with it, deprecated phones announcement

Looking for more information on this one, is always good idea to look at the field notices on CCO. In a nutshell here is a list of the phones that will no longer be supported by CUCM on version 11.5 Problem Description The following phone models are deprecated and are not supported by Cisco Unified […]

Written by Andres SarmientoMarch 4, 2016February 15, 2017

ASA AnyConnect and SSL VPN for IP Phones with CUCM

This one may seem a bit like a very involved configuration but in reality is not. The process is easy, if you know how to set up AnyConnect in an ASA, you will be able to crack it. I have also included few links that show the process and the important things that you need […]

Written by Andres SarmientoMarch 4, 2016February 15, 2017

CUCM upgrade from 9.x to 11.x – Short post

Finishing an upgrade project after being a while since doing one, I wanted to take the time to share the experience and how easy has Cisco made it into upgrading their software. It may look a bit disorganized, but you will find few things that I used to refresh my memory on the process, but […]

Written by Andres SarmientoFebruary 28, 2016February 15, 2017

NANPA and LocalCallingGuide – Best new friends?

Confused about dial plans in the US? – Here is the solution These 2 sites will help you get the most out of any North America dial-plan based on Areacode Lets begin with NANPA: https://www.nationalnanpa.com/ Going into Tools and Area Code Search you can get a lot information Here is an example: Pay close attention […]

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