[asterisk-users] Why PRI not BRI ?

[virendra bhati]

Thanks a lot all,
Now my view is clear ...

On Sun, May 29, 2011 at 3:15 PM, Gordon Henderson <
gordon+asterisk at drogon.net> wrote:

> On Sun, 29 May 2011, virendra bhati wrote:
>
>  Hi List,
>>
>> I have stupid question but I want to know it. Why we use the PRI insted of
>> BRI ? Just for the sake of number of lines or any thing else ?
>>
>
> It probably depends on your country.
>
> In mainland europe (or maybe just Germany), ISDN2e (BRI) is very popular -
> not uncommon in home installations too.
>
> In the UK, it's almost the standard in small businesses - the migration
> path seems to be from a single line to 3 lines sharing the same number to
> ISDN2e...
>
> There was a push in the UK to support BRI in the home (~10 years back,
> under the name Home Highway), but it came at a time when ADSL was almost
> upon us, and BT in their infinite wisdom removed a lot of the ISDN features
> that make it actually useful...
>
> I don't think BRI ever caught on in the US - It was analogue or PRI (or
> channelised/fractional T1 or whatever it's called) Probably made it much
> easier for the telcos to support (and afford)
>
>
>  And why SIP is used for making calls rather then IAX? Even we know IAX
>> takes
>> 1 channel for making calls?
>>
>
> SIP is an open standard that's been around since the late 90's. IAX, which
> is also open and free was only just accepted as a standard last year, but
> even so, there's inertia. Very few phone manufacturers are using it - why
> should they, when they've been using SIP for years, and the same PBX that
> works with IAX also works with SIP... (And does any other PBX support IAX
> yet?)
>
> Gordon
>
>
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-- 



-----
Thanks and regards

 Virendra Bhati
+91-9172341457
Asterisk Engineer
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