On Wednesday, April 02, 2014 6:55 AM, Fred Goldstein <> wrote: > But in addition to that, I STRONGLY recommend a separate VLAN for the > voice-grade channels. With priority, or reserved bandwidth. TCP/IP in > normal operation manages its flow rate by having packets thrown away; > that's why the 1G LAN port on your PC doesn't blast a whole file at 1G > into a 2M link. It uses packet loss as a signal. TCP applications > retransmit and actual human voice is intelligible with some gaps, but > modems, including fax, are very unhappy.
Do note that RTP is implemented over UDP, not TCP, so in VoIP, a dropped audio packet is a lost audio packet, not a delayed or even out-of-order audio packet (although those other two things can happen...they just aren't a result of retransmits, or at least not a retransmit initiated by Layer 4). -- Nathan Anderson First Step Internet, LLC nath...@fsr.com _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
