Here is the doc talking about ntop voip feature. http://www.ntop.org/OpenSourceVoipMonitoring.pdf
It states ntop can use nprobe to get caller and callee information. We do have cisco UCCM cluster to pull these information. But I would like have another tool to show this information in real time. Lou On Thu, Jul 22, 2010 at 2:23 PM, Gary Gatten <[email protected]> wrote: > What do you mean, “analyze” the VoIP traffic? Ntop will provide basic > stats, throughput, pps, etc - traffic matrix as well. Your IPT/VoIP system > should provide the Call Detail records: caller, callee, call time, etc. > Wireshark will provide detail for low level analysis. What are you wanting > to “see” that you may need nProbe for? > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Hailu Meng > *Sent:* Thursday, July 22, 2010 2:15 PM > > *To:* [email protected] > *Subject:* Re: [Ntop] How to monitor VoIP traffic > > > > Thanks Gary. I just took a look about nProbe feature. There is one item > listed: > VoIP (SIP and RTP) traffic analysis. > > So I think I should install nProbe to analyze the VoIP traffic. Anybody can > confirm this? Thanks a lot! > > Lou > > On Wed, Jul 21, 2010 at 5:34 PM, Gary Gatten <[email protected]> wrote: > > Sorry, can’t help much here as I don’t use IPT / VoIP. I THOUGHT there was > a VoIP plugin or embedded support in nTop – but not sure. > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Hailu Meng > *Sent:* Wednesday, July 21, 2010 5:24 PM > *To:* [email protected] > > > *Subject:* Re: [Ntop] How to monitor VoIP traffic > > > > I got switch setup and the voip traffic now is being monitored by another > NIC in ntop server. But how can I see the call flow? caller and callee id? I > remember ntop has ability to see that. But I can't find anything related in > the settings. Do I need nProbe for this purpose? > > Thanks. > > Lou > > On Mon, Jul 19, 2010 at 12:02 PM, Hailu Meng <[email protected]> wrote: > > Thanks Gary for the detail. We don't use netflow but I see your point here. > For packet filter, you can simply specify RTP to filter the traffic, right? > > Besides monitoring the traffic, if I want to decode the signaling traffic > to know who is calling who, is ntop able to do that as you know? Since > wireshark can show this information based on the skinny traffic, I guess > that should not be hard for ntop. > > Thanks. > > Lou > > On Mon, Jul 19, 2010 at 11:49 AM, Gary Gatten <[email protected]> wrote: > > I thought one could configure a range of ports for use by the phones? > > > > Also, if you have Ci$co gear you can probably setup multiple export > statements: one that exports only VoIP/IPT traffic, and one that exports > everything else. Sorry, assuming you’re using netflow. You can also > accomplish the same thing with packet filters in ntop and as Thomas pointed > out, SPAN only the Voice VLAN to one NIC in ntop and perhaps all other > traffic to another NIC – if you desire. > > > > There are likely several methods that would work for you. > > > > G > > > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Thomas Mullins > *Sent:* Monday, July 19, 2010 11:32 AM > *To:* [email protected]; [email protected] > *Subject:* Re: [Ntop] How to monitor VoIP traffic > > > > One thought would be to have all your Voice equipment in a dedicated Voice > VLAN. Then you could just monitor that VLAN. That is how we are going to > monitor our Voice traffic. > > > > Shane > > > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Hailu Meng > *Sent:* Monday, July 19, 2010 12:18 PM > *To:* [email protected] > *Subject:* [Ntop] How to monitor VoIP traffic > > > > Hi All, > > I installed Pre3.4 version and want to define some interested traffic flow > which can be shown in ntop. One is RTP VoIP traffic among our cisco phone > system. Since the RTP traffic port is dynamic, it can't be defined in my > protocol list. Is there anyway I can setup ntop to show RTP traffic besides > the cisco skinny traffic? > > Thanks!!! > > Lou > > "This email is intended to be reviewed by only the intended recipient and > may contain information that is privileged and/or confidential. 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