[Asterisk-Users] VoicePulse for outbound dialing

[Andrew Joakimsen]

GSM is fairly low bandwidth, but IIRC they are using the GSM FR codec,
not GSM EFR so sound quality sounds like a mobile phone from the mid
90's.

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of 
> Carl Youngblood
> Sent: Tuesday, December 09, 2003 7:47 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] VoicePulse for outbound dialing
> 
> 
> 
> > What about the G.729 codec?  From what I've heard it allows you to
> > stuff an analog call into 8 Kbps.  This would give you a 
> theoretical 
> > maximum of 80 simultaneous connections on a 640 Kbps DSL line.  I 
> > would expect this to be much lower in practice, say 20 simultaneous 
> > streams, but still, that's not bad.
> >
> Adding to my own question, VoicePulse doesn't appear to 
> support G.729.  
> Here is their list of supported codecs: GSM, G.711ulaw, G.711alaw, 
> ADPCM, ILBC, SPEEX (from 
> http://connect.voicepulse.com/specifications.aspx).  Does 
> anyone know if 
> one of these is as good as G.729?
> 
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