[email]go.spam@somewhere.else[/email] (Jose) wrote in
news:47ed6527.35926890@news20.forteinc.com:
[color=blue]
> Hi All,
>
> I've just started using my SPA3102, and wasn't impressed with both the
> sound quality of an incoming PSTN call - I don't know if the person on
> the other side was using a poor cordless phone (?) - and an outgoing
> call to a mobile in a diferent country - not the easiest scnearios, I
> know...
>
> Still, I've changed "Jitter buffer adjustment" from "up and down" to
> "up only" - trying to increase the buffer so the sound doesn't have
> cuts in the middle, like I noticed today :-(
> Does this seem like a reasonable option?
>
> Besides, I'm considering fidling with codecs... Apparently G726 should
> allow for fair quality, with smaller packets of data. Right, or not so
> much?? I'm trying G726-32
>
> Any other codec sugestions, and why you'd choose them? (I'm presently
> using G711a)
>
> Oh, since the SPA3102 is attached to a router port, I've already setup
> in the router high priority to that port over the others - wich have
> normal priority.
>
> Regards,
> Jose
>[/color]

If you have ADSL/Cable, then G711a is OK unless you have multiple calls.
Bandwidth is ~85k each way with overheads - quality is the best you'll get
and equicalent to ISDN.

G726-32 is DECT quality in half the bandwidth of G711a.

G711u is comparable to G711a but the North American standard.

Anything other codec you will probably notice the compression to some
degree.

Regards
Peter