[Asterisk-Users] Software to test a LAN for possible VoIP Install

TC trclark at shaw.ca
Tue Apr 6 18:22:48 MST 2004


> Does anyone know of any opensource or inexpensive software that can test a
> network for a possible VoIP installation?
inexpensive is the key there appear to be a lot of expensive tools :)
you might try http://dast.nlanr.net/Projects/Iperf/
note when using this tool with the
--udp option you should use -l
and set the packet size based on the codec payload
and the control overhead if testing to simulate IAX2
I believe iax2 packet size is 12 bytes + codec payload
at gsm = 33 bytes, g723 = 27 bytes
http://dast.nlanr.net/Projects/Iperf/iperfdocs_1.7.0.html


> I have seen Chariot by NetIQ, but it is very costly!
>
> I am envisioning two or three "client" devices that talk to a server
device.
> Each client could simulate 1-100 VoIP phone calls.  The server module
would
> monitor the QOS, jitter, etc., and provide some kind of score.




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