[asterisk-users] Codec transcoding and call recording

[Vicky]

heres my scenario    softphone--------->Asterisk( outgoing call recording
)---->Call Provider
I am recording all outgoing calls on asterisk so its obvious that there is
no native bridging . Suppose if i am using gsm from softphone-->asterisk and
then what codec should i prefer for   asterisk- > provider ?? Bandwith is
not at all a problem between asterisk->provider connection . So  if i am
using gsm from  softphone to asterisk ... then what would be better choice ?
sending gsm to provider or ulaw/alaw ? I suppose asterisk already touches
audio stream since it is recording to wav file but what i want to know is do
asterisk sends same gsm stream ahead to
provider ( and reduces cpu usage ) or it still have to transcode for
recording ? because if its transcoding anyway then sending ulaw/alaw stream
ahead would be better right ? or am i missing something :-/


Also what would be better if i use g729 from softphone-->asterisk( capable
of g729 transcoding ) should i send g729 ahead or ulaw/alaw?
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