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Collaboration Engineer

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

Tag: voice gateways

Written by Andres SarmientoApril 5, 2017May 29, 2018

No voice-port when using NIM-1CE1T1-PRI – From Cisco Support community

I love the Cisco Support community, and credit should be given to all the people out there that work very hard on UC and Collaboration. Last night I was trying to turn up a PRI (Yeah, old technology right?) – So a client is terminating a PRI back to back with their equipment and on […]

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 SarmientoDecember 9, 2014February 15, 2017

CCIE Collaboration Lab Recommendations and Strategy [The aftermath of my first attempt]

While my experience on my first attempt was not the brightest one because I failed, I was able to open my mind and think on endless possibilities and maybe potential recommendations. I hope this helps other with their studies and strategies. Studying and Muscle Memory: Do you studying… I think many instructors across the globe […]

Written by Andres SarmientoNovember 15, 2014February 15, 2017

Cisco SIP Phones Admin Password removal CME [TCLSH Operation]

On this one I wanted to share a really nice way to remove the Admin password from Cisco SIP phones. It really is annoying to type the Admin password every time you need to modify or at least take a look at the configuration on your phone. As you may know when you configure a […]

Written by Andres SarmientoAugust 30, 2014February 15, 2017

How are you preparing for the CCIE Collaboration LAB ?

Just for curiosity, I would like to know how is the people on this group preparing for the CCIE Collaboraiton Lab, right now here is my preparation and roadmap: I have completed a lab in order to be able to study most of the technologies included in the blueprint, here is what I have: 3 […]

Written by Andres SarmientoAugust 29, 2014February 15, 2017

Upgrading CUCM from 9.1.2 to 10.5 – Issues

Hi there, today I have a customer that wanted to upgrade from CUCM 9.1.2 to 10.5 – which sounds pretty easy… think again, so this is a BE6K deployment where CUCM instance was configured with the recommended OVA from CCO. When starting the upgrade I found that the upgrade didn’t wanted to proceed as expected. […]

Written by Andres SarmientoJune 24, 2014February 15, 2017

Andres’s toolbox, workflow and more…

Hi people, I wanted to take this opportunity and share my toolbox and workflow with you. In case you don’t know who I am and what I do here is a quick reference note. What I do and who I am: I’m a Lead Technical consultant specialized in Cisco Unified Communications and Collaboration (a mouthful, […]

Written by Andres SarmientoMay 28, 2014February 15, 2017

First contact after I made it back from Cisco Live 2014!!

Cisco Live 2014 – San Francisco Just wanted to take this time to talk about my experience at Cisco Live 2014, representing the Modcomp team. It was a great experience and a nice way to meet with people that is in the same boat you are, Engineers that are seeing the same issues you see […]

Written by Andres SarmientoApril 26, 2014February 15, 2017

CCIE Collab – Gateways and Trunks in CUCM

Hi there, so today I wanted to bring up something that was very confusing to me long time ago. The concept of MGCP, H.323 and SIP. these 3 are very big and there is a lot of information about them, I just want to explain with my own words what every single protocol means for […]

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