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Monitoring VoIP

SolarWinds has heard requests for additional VoIP monitoring. We'd like to hear more from customers interested in VOIP monitoring.

Some questions to consider:

1. What are the specific problems that would be solved by a VOIP monitoring tool?

2. Which VOIP statistics would be most valuable to monitor?

3. What kind technology are you using for VOIP (e.g., SIP-compliant)?

Please speak up. Let us know if you're really interested because we'll be conducting some individual interviews on the subject soon.

Denny LeCompte
Sr. Product Manager, Orion
SolarWinds

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navy1942

Some items would be a measure of jitter, packet loss and delay to individual telephony devices, both phones and gateways and also the codec being used and whether it is being transcoded. Be able to search the network for phones whether they are SIP or Cisco's SCCP, by extension, phone type, IP address etc. Definitely a MIB for Cisco phones and some control over the individual phones. - Berbee came out with a tool to control individual phones, so it can be done, but a single tool such as that just was not popular. There are a great many things that can be measured to ensure voice quality, but it is subjective.

patwill66

I think the ideas that navy1942 has brought up are great. I would also like to see Orion be able to pull WMI information from a Cisco Call Manager server. Being able to see current active calls or peak calls would be helpful. This type of information would also be nice to see on voice router. For example, I have a router with two PRI's and it would be nice to have an easy to to view active channels and peak channels and be able to graph the data. Being able to graph everything is probably the most important thing that management always wants to have.

Mithrilhall

I agree with the recommendations navy1942 made.

SIP-Compliant.....yes.

We're currently using Cisco Call Manager with Cisco 7960's, 7940's, and 7912's.

We are also running a few Trixboxes. (http://www.trixbox.org/index.php)

ACDII

Voice Gateway monitoring would be a nice feature. Sometimes we get a message from the Callmanager stating MGCP gateway down, but never states which one. Another feature would be show call active brief on Cisco H323, to chart calls in, out, duration, etc. Not for CDR reporting, but for min, max usage reporting so we have an idea when a trunk needs to be upgraded. A few times we had a trunk become overwhelmed with calls, and we didnt know it until we got complaints that calls couldnt be made, so trunk status alerts would be good too. A few features we use on routers are MGCP, CCM-manager, and SRST. Ephone status alerts might work too.

Example of some alerts the CM send out that makes us scratch our heads,

Call Manager Warning At 10:45:25 on 01/22/2007 on cluster CCMANAGER1-Cluster.
MGCP DChannel is out-of-service .
There are currently 1 device(s) with D-Channel-Out-Of-Service status.

Doesnt say which one, we have to dig through the event logs to find it. Another one,

Call Manager Warning At 09:24:44 on 01/19/2007 on cluster CCMANAGER1-Cluster.
Number of MediaListExhausted events exceed 0 within 60 minutes.

OK?? Doesnt say much, does it?

Call Manager Warning At 12:56:13 on 01/18/2007 on cluster CCMANAGER1-Cluster.
Number of RouteListExhausted events exceed 2 within 15 minutes.

At 13:03:27 on 01/23/2007 on cluster CCMANAGER1-Cluster.
Number of registered gateways increased .
Current monitored precanned object has increased by 5.

Some samples that might help out.

A big one we have issues with is CTI ports to the Zeacom servers from the Callmanagers. Knowing when they are having an issue would be GREAT!

michael.buskin

VOIP Utilization through Cisco IS Routers

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