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Unread 12-04-2006, 08:26 PM   #1
shezad
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Default Voice codec g729;ilbc;gsm;ulaw;alaw

I have a question about voice codec that are used with voxalot, on the voxalot provider site i can see g729;ilbc;gsm;ulaw;alaw.

I have a registered account with lowratevoip and from theyr site i can see they use theese voicecodec :

G.711 (64 kbps)

G.726 (32 kbps)

G.729 (8 kbps)

G.723 (5.3 & 6.3 kbps)

GSMFR (13.2 kbps)

Well im getting some voiceproblem when i make a call to Pakistan using the lowrateprovider true voxalot. Im using a linksys spa1001 adapter, and on it im using G711 voice codec. The voxalot codec g729;ilbc;gsm;ulaw;alaw.

Im wondering, is it the adapter that controlls the codec or voxalot voice codec system ?
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Unread 12-05-2006, 04:38 AM   #2
kurun
 
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Default Codec

I believe that the choice of Codec is "negotiated" between the calling and called party's hardware device or soft phone at the time of call set-up.

G711 (u or a coding) is the same as ulaw or alaw codecs in the Voxalot list.
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Unread 12-05-2006, 10:14 AM   #3
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Default

ok thanks :=)
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