Reply To: How many KB/MB are used per/min w/VOIP?

Mike,
asuming tha the person will speak for a 1 minute witout silence.

You will have

Codec G.723.1 = 125 Kbytes
Codec G.729 = 176 Kbytes
Codec G.711 = 586 Kbytes

Regards

JIQ