RV: [Asterisk-Dev] ADSI over SIP

[Alejandro G]

> It doesn't really quite work. It works most of the time, but ADSI requires
> very precise timing which isn't achievable even over LAN with g.711.
>
> The "right" way to do this would be to implement a t38-like protocol to
> transport the BPSK datastream out of band, but its quite a bit of work.
(sorry, correction, I meant FSK not BPSK. Too much wireless work lately :)

There are many ATA's with fax pass-tru G711 with no echo cancel and no vad,
you mean that also in that case the channel could not transmit the 1200 FSK
correctly?

Alejandro