2 ms·
That's true. Modem was at 56kps max mostly on regular phone line. Voice requires much less than 56kps. Voice on old line sounds crisp and clear. Are they pl
by ww520 15y ago
That's true. Modem was at 56kps max mostly on regular phone line. Voice requires much less than 56kps. Voice on old line sounds crisp and clear.
Are they planning for mulit-VoIP sessions or video VoIP?
- adestefan 15y agoA POTS line is analog so even though you can run a 56kbps modem, the actual data is transmitted via an analog signal. G.711 is the raw digital voice benchmark and encodes at a constant 64kbps PCM a-law or u-law ecoding (8 kHz sampling frequency x 8 bits per sample). This is the reason why digital carrier lines are always multiples of 64. A DS-0 is one 64kbps channel, a DS-1 is 1.54 Mbps (24 * 64), an E1 is 2.048 Mbps (32 * 64), etc.