Depends the VOIP. But (when set to "high quality mode) use g7.11 for the codec. This is the same that most digital lines (ie: isdn, t1) use
- so in most cases lossy compression is NOT an issue.
What IS often an issue is latency in the IP connection -- this translates into audio latency. For instance, a 250ms delay on the IP end means that there is a 1/4 second delay in the audio -- the recieving end hears the audio 1/4 second after it is sent.
That sort of thing can play havoc with modems and faxes.
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