From: "Ian Chapman" <[email protected]>
Subject: RE: A law v U Law
Hi,
clarification, u-Law is the PCM compression or coding used in NA,
A-law rest of world. That is the speech is turned into a digital PCM signal
by the CO using one of the above before being put onto one of the channels
of the 24 channels of a T1 or I think 30 of the 32 channels of an E1 trunk.
E1 has 2 channels for signaling and T1 a lot of messing about for
signaling.
Regards Ian.
> ----------
> From: Douglas L McKean[SMTP:[email protected]]
> Sent: Monday, September 07, 1998 3:12 PM
> To: [email protected]
> Subject: Re: A law v U Law
>
>
> u-law is T1
> a-law is E1
>
> On Mon, 7 Sep 1998, John Pearson wrote:
>
> > Hi
> >
> > Can any one tell me which countries use which encoding technique world
> wide. Just those that you know will help me to complete the list
> >
> > Thanks
> >
> > JohnP
> >
>
