voip 2talk/voicemail entry options not working

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Noig

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#247048 15-Aug-2009 21:00

Chill
Do you know if it uses more bandwith as iLBC or any other?

ChillingSilence

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#247056 15-Aug-2009 21:19

Yes, PCMA (More commonly referred to as "alaw", or "g711") uses 64kbps. When you factor in IP overheads, then if memory serves me correctly you're looking at nearly 110kbps over a PPPoA ADSL Connection.

If you're using iLBC (15.5kbps) it ends up around 44kbps when factoring IP overheads for a single call. Same if you use g729.

IF bandwidth is a premium, switch to g729 or (my favorite) iLBC.

That said, a single VoIP call doesn't use terribly much of your monthly usage unless you're on the phone 24/7, however if you're on a limited-upload connection you'll definitely get better quality out of iLBC :)

Bear in mind that g729 & iLBC *are* compressed, however IMO they still sound pretty darn good. Most un-trained people wouldn't know the difference in sound :D

Noig

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#247058 15-Aug-2009 21:29

Chill
Thats a thorough explanation and I'm sure I will look at this a few more times.
I think my BB plan which is 20GB fast up/down should be plenty.
Most likely I will try the iLBC again and check out if there is any noticeable change.
Have a good weekend, what's left of it!

coffeebaron

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#247481 17-Aug-2009 09:07

Good to hear you seem to have got it sorted.
G711 (PCMA/U) consume approx 1.3MB per minute
G729 consume approx .5MB per minute

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Noig

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#247484 17-Aug-2009 09:14

coffeebaron
Yeah, it's going very well and I'm glad I moved one of our numbers over.
Things just take time.
Have a good day!

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