Hi,
your calculation seems a bit strange to me. When you order a 64kbps leased
Line, it is bidirectional (64kbps in both direction). so I don't see the
point in adding the two directions.
when you're not in VoIP, PCM uses 1 64k channel for a bidirectional
conversation.
What do you think?
LL
>From: "Robert Nelson-Cox" <[EMAIL PROTECTED]>
>Reply-To: "Robert Nelson-Cox" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED], [EMAIL PROTECTED]
>Subject: RE: Bandwidth constraints for VoIP
>Date: Tue, 09 Jan 2001 12:43:23
>
> >From: "Ricardo Ciganda" <[EMAIL PROTECTED]>
> >Reply-To: "Ricardo Ciganda" <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Subject: RE: Bandwidth constraints for VoIP
> >Date: Tue, 9 Jan 2001 13:19:48 +0100
> >
> >Hi, all
> >
> >The bandwidth requirements for VoIP is the following
> >
> >Aprox 11Kbps for a voice channel (unidirectional), so a conversation
> >wastes in fact 24 Kbps.
> >
> >So, with 64 Kbps you can hold two conversations (24 +24)=48 Kbps. I have
> >never tried to code 3 conversations in 64 Kbps but I suspite that it
> >won�t work.
>
>It's not that it won't work, just that the quality is crap. It's common in
>voice land to got down to 9k, but cisco kit can't do it that well.
>
>
>Rob./
>
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