recording VoIP calls

Guest

I want to be able to record my VoIP calls as wav/mp3 files to harddrive in my PC. Is anybody aware of software (preferrably win32) which would listen to VoIP traffic on the network and save the voice as a sound file?

PS. I would really like to tell some customer service agents something along the lines: "Oh, and BTW, this call IS being recorded on my side for quality assurance purposes".

Posts: 12 · Vonage Forum Associate Joined: Apr 08, 2003 Posts: 12

if you had a splitter off of the ata then you could hook one into the phone and one into the modem. I know there is software that lets you record with the modem in your computer, which is a dial up modem. Search for the software i know there is some free stuff.

Guest

hroo772 wrote:

if you had a splitter off of the ata then you could hook one into the phone and one into the modem. I know there is software that lets you record with the modem in your computer, which is a dial up modem. Search for the software i know there is some free stuff.

It would not work. Modems are not designed for that sort of thing. The modem can not tell that parallel phone went off-hook, and I am calling somewhere. Consequently, the software will never know, that there is an outgoing call which needs to be recorded.

What I actually need, is a software which can extract voice data out of TCP/IP network. There are multiple large-scale products used by callcenters, but I could not find anything suitable for home use...

Posted: Fri Dec 26, 2003 12:42 am Post subject:

How 'bout this:
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F008%5F008%5F012%5F001&product%5Fid=43%2D1237

Granted, this doesn't decode the VoIP calls...but it allows you to record any phone call (regardless of whether it's VoIP or not) by plugging this device into the handset, and plugging the other end into the input jack on your PC. You can then use Windows Media Player or another program to record/save the program as a .wav file.

In terms of decoding the VoIP call, WildPackets' EtherPeek NX lets you decode VoIP calls, I believe....for the princely sum of $3495.00

Posted: Fri Jan 02, 2004 11:40 am Post subject: Re: recording VoIP calls

max wrote:

I want to be able to record my VoIP calls as wav/mp3 files to harddrive in my PC. Is anybody aware of software (preferrably win32) which would listen to VoIP traffic on the network and save the voice as a sound file?

PS. I would really like to tell some customer service agents something along the lines: "Oh, and BTW, this call IS being recorded on my side for quality assurance purposes".

Were you able to find any such software, I am also looking for it.

Posted: Fri Jan 02, 2004 5:52 pm Post subject: recoring with tcpdump

I was able to record phonecalls on my firewall using tcpdump. You have to run the packets through the appropriate codev to convert them to a wav file.

Posts: 4 · New Forum Member Joined: Jan 26, 2004 Posts: 4

Guest,

I've tried this with tcpdump also but for some reason the audio is twice the speed. Can you detail the the approach you took from recording the packets all the wya down to playing back the audio. This is a great feature for recording business transaction phonecalls.

Posts: 9 · New Forum Member Joined: Jan 23, 2004 Posts: 9

You can do this with a modem and a splitter. I've done it. You need a modem that has a voice chip and some software. The modem I found to work (and I spent HOURS and HOURS trying differernt ones) uses a Motorola chipset. The part number on the box is ENF656-ESW-MOPR. The chipset itself has these numbers on it:
62802-51
QZ0249
FG4M5-000

I found them from a supplier on shopping.yahoo.com for $9 each. If you need more specifics, like the vendors name let me know.

The software is called CallCorder and can be found at www.callcorder.com

Posts: 4 · New Forum Member Joined: Jan 26, 2004 Posts: 4

Thanks for the reply. ModemSpy does the same thing which I've used in the past but it would be awesome to do the capture at the IP level vs the analog level.

I can capture the packets for some dang reason the play back at double speed almost as if there is a sample rate problem (chipmunks). Oh well.....

Posts: 9 · New Forum Member Joined: Jan 23, 2004 Posts: 9

can't you use a program like CoolEdit or some other audio editor to change the speed?