There is no way around it,
finding the SIP call flow is the first thing you have to do when you are facing a SIP call failure.
Why?
Easy.
Because first of all, you have to understand whether this is a call routing problem or signaling/media compatibility issue.
SIP call flow helps you understand just that, and in a lot of cases, you can pinpoint the problem just from looking at the SIP call flow.
Need to setup a CCIE Collaboration lab?
Want to practice your SIP skills?
Need to run a PoC with ITSP integration?
Don’t have a spare ESXi server?
No worries.
This is how you install a vCUBE on virtually any PC using free software.
Build pro IOS configs. FAST.
Since Cisco has bought Acano in late 2015 and turned it into their leading product for video conferencing, a lot of questions has been raised on both commercial and technical fronts.
Continue reading Cisco Meeting Server training requirements
Prime Collaboration Assurance deployments (PCA) became very popular since Cisco has started giving it away for free (standard version) with new orders. It is indeed a great tool for those who are willing to make the effort and make it so.
Are you?
Continue reading 5 Steps to ace Prime Collaboration Assurance deployment
As you may know, starting of version 10.6 of Prime Collaboration Assurance packet capture became quite tricky. It happened due to Cisco’s decision to disable Root access on the server. Fortunately, Cisco didn’t quite swallow the key.
Continue reading On Cisco Prime Collaboration Assurance Packet Capture & enabling Root access
That did not go as planned. Doubt started to cripple down my spine.
It has to work I kept mumbling to myself, but ITSP and Cisco CUBE would hear none of it, numerous times..
Continue reading How to configure Cisco CUBE with ITSP, and get to poker night on time.
UCCX 11 has been around for a while now. 
And yet, some of us are deliberately
ignoring it,
and for a good reason. Continue reading 4 New features for UCCX 11 & a huge one for UCCX 11.5
Passing the CCIE lab exam is a bitch. Why? Because there is a lot to it, and I’m not talking about technical stuff only.
Many talented technology oriented guys are failing the CCIE lab exam each day. And it’s not that they are not familiar with the technology, trust me they are. They probably spent hundreds of hours in the lab, not to mention the theoretical reading.
And still, the bigger they are the harder they fall. But Why???
Let us try to break it down. Continue reading 3 reasons you fail the CCIE lab exam. 2 of which, no one talks about.
After discussing version 11.5 of IM&P and CUCM its Unity Connection 11.5 turn.
Although no records were broken with the number of new features, there are definitely some new exiting ones. Here is a sneak peek of what Unity Connection 11.5 has to offer. Continue reading Essential CSR 11.5 features. Part III- Unity Connection is in the mix
After we picked in the IM&P new features the stage is ready for the main event.
CUCM 11.5 is available and it comes with some nice tweaks. Here are few. Continue reading Essential CSR 11.5 features. Part II – CUCM 11.5 in the spotlight