5 ms·
It would still be encoded, assuming your (analogue) POTS call traversed more than one exchange then it would have been coded to g.711 (ulaw or alaw) for that in
by tonymillion 3y ago
It would still be encoded, assuming your (analogue) POTS call traversed more than one exchange then it would have been coded to g.711 (ulaw or alaw) for that inter-exchange. Although (from memory) that would be 10ms packets.
- toast0 3y agoT1 time slots are 8-bits, samples are sent individually, with no packetization delay. There may be some delay between sampling and the time slot, and in a buffer when calls are connected between T1s and the time slots don't need to be matched up. If you were calling into an x2/kflex/v.90/v.92 modem bank, that was hosted on a T1 (or larger), and v.92 could get 33.6 up, 56k (or so) down. It should be possible to recreate that with VoIP, but I don't know that anyone is that dedicated... anyway for end user modem to end user modem, 33.6 is the limit.
- bwann 3y agoI recently tried this for making a YT video using an ATA with a USR Courier dialing into a ISP's POP in San Jose. V.92 flat out didn't work for me, but V.90 did. Surprisingly I was able get 50-53k downstream carrier rates, upstream was pretty lousy at 14.4-16.8k. The calls only lasted a couple of minutes before they were unable to renegotiate. 28.8k was much more reliable.