Voice detectoin.

[tushar47]

Dear sir,

I am working in a Class A ISP. I want to detect whether any client is using any voice Traffic.

Because Toll Bypass is illegal in our country.

Please tell me the Free tool to detect Voice Traffic or advise me how can I detect it through Cisco Routers or Cisco Switches.

currently I am using Blueport Scanner, which is not good.

Thanks in advance,

Regards,

Tushar

[thisisshanky]

Use a sniffer and look for Voip protocol/port numbers.If its Cisco VoIP traffic, it uses UDP traffic 16384 through 32767.