Archive for the ‘Voice’ Category

CCIE Voice 3.0 updates

Tuesday, December 2nd, 2008

Well, we all knew it had to be coming…

I think this is a good thing really. For those like me currently studying, it’s kind of bad timing, but it’s not like the knowledge doesn’t apply to CUCM 7.0. Looks like they added Presence as well.

No more 6500 (6608), vg248, and ATA it seems

Blueprint ::

Equipment ::

This goes live mid-July. I have a feeling I’m going to have a hard time scheduling a lab between now and then…

Unity, the phantom menace!

Saturday, October 4th, 2008

We had this one case open for like a month, and I decided to take a crack at it a few weeks ago. I thought it was a pretty funny issue, that I don’t see too often.

So there was this one user, that kept getting missed calls like 5-10 times a day. And they were always showing to be coming from the Unity server (based on the Caller ID). This was pretty annoying for sure and it was only one user that kept getting these phantom calls.

I’m thinking to myself, when does Unity call anyone? Unity can do message notification right? We get a new Voice mail and we can have Unity page, email or call us. I figured this was probably a good place to start, looking at notifications in Unity.

This first thing I’m thinking is there is no way I’m going through every subscriber and checking their notifications. I knew I wanted to be able to search subscriber notifications and see if any were set to dial her extension (let’s say her extension was 5125).

I opened the Tools depot and used the “Subscriber Information Dump”. You can basically use this tool to write all the subscriber properties to a CSV file and be able to search through them easily. I searched through and didn’t find anything that exactly matched her extension (5125).

I ran this during the day and didn’t affect the system, just make sure to monitor task manager when doing these things. You can also check the “call viewer” to make sure there aren’t a lot of calls to the system.

See below for Subscriber Information Dump location ::

subscriber dump


One-way audio?

Saturday, October 4th, 2008

I had a nice one-way audio issue I was troubleshooting on Friday.

Here’s the setup ::

Cali HQ site < -----> MPLS Cloud < -------> LA Regional office (PRI located here for LA Sales Office PSTN access)

Cali HQ site < -----> MPLS Cloud < -------> LA Sales office

This is a pretty simple setup where you have the HQ site with Call manager which connects to the MPLS cloud. And you have the Remote Regional and Sales office that also connect to the same MPLS cloud.

The issue was regarding the LA Sales office which was reporting one-way audio issues for outside (PSTN) and on-net calls (across WAN).


Know your SRNDs

Monday, September 8th, 2008

I think these are going to be must reads for my Voice Preparation ::

I’m focusing on the following ::

CCM 4.x


IPCC express

QoS–link is broke right now?

Got my Voice BLS

Wednesday, September 3rd, 2008

Got my Voice Blended Learning Solution in the mail from IPExpert. I have started the Video on Demand portion. I’m shooting for 6 months before taking the lab. I have rack time as well from Proctor Labs. I will be starting the Vol1 labs this month.

Here is my book list that I’m using as reference material ::

Cisco IP Communications Express
Configuring Call Manager and Unity
CVOICE Self-Study Guide
Troubleshooting IP Telephony
Cisco QoS Exam Cert. Guide
Cisco Voice Gateways and Gatekeepers
CIPT Self-study Guide