|reply to Davesnothere |
Re: Router ALT Firmware for QoS for VoIP
VoIP consume at most 90-ish kilobits/sec including all the overhead even with the highest quality codec at 64k bits/s. I have posted the Cisco's calculations link multiple times in the past.
The only reason why some people recommend reserving the bandwidth is to not saturate the up/down links so much to cause jitters. The right amount would be determined by how tolerate your particular ATA firmware and you to jitter during a phone call.