[asterisk-users] fax / t38 gateway

Andrew Kohlsmith (lists) aklists at mixdown.ca
Tue Oct 28 12:16:16 CDT 2008


On October 28, 2008 12:58:25 pm JD wrote:
>   The folks that devloped the fax V.protocols took into acount typical
> copper problems like noise or echo. But what they never conceived of as
> even being possible is that a call might shift around in the time
> domain. Thanks to jitter/latency, the delay time of a call can change in
> the middle of the call. That isn't possible with copper technologies.
> This makes faxing over even G.711 a dice roll.

A good description, but please, refrain from "copper technologies" -- copper 
has nothing to do with it.  You're talking about conventional PSTN (circuit 
switched) technologies.

-A.



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