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ISDN was 64kbps pet channel though - and to my knowledge did not use a wideband voice codec by default (or at least didn't mandate all ISDN receivers support wi
by DaiPlusPlus 10y ago
ISDN was 64kbps pet channel though - and to my knowledge did not use a wideband voice codec by default (or at least didn't mandate all ISDN receivers support wideband audio).
Lots of people who had ISDN kit plugged their old POTS phones into their TAs anyway.
- doctorshady 10y agoISDN is actually used quite a bit in niche markets in the states. For studios, typically you'll see a couple B-channels bonded to give someone 128K MP3 or AAC. At a bare minimum, 64 kbps/16khz g.722 is used. I worked in a newsroom a few years ago where I frequently had to record a weather guy from a distant area who used this.
- nickpsecurity 10y agoUsed in STE units for secure communication as well: https://en.wikipedia.org/wiki/Secure_Terminal_Equipment https://en.wikipedia.org/wiki/Secure_Terminal_Equipment
- dboreham 10y agoI think it sounded good because it was clean 64K end-to-end. No trickery with transcoding a bunch of times along the way so someone could save a nanopenny.
- Animats 10y agoRight. The bits you send are the bits that are received, clocked at a fixed rate. No compression or timing artifacts.