[Asterisk-doc] Connecting to a PRI

[Mats Karlsson]

Stephen R. Darragh wrote:
> Mats Karlsson wrote:
> 
>> Jeff Gehlbach wrote:
>>  
>>
>>> I can't comment on E1, but one slight correction on PRI channelization
>>> terminology: the "D" designation of the signalling channel stands for
>>> "delta", not "data".  The same applies for the 16Kbps "D" channel used
>>> in BRI.
>>>
>>> I just joined the list, so I must have missed the balance of your
>>> writing.  I would love to peruse, is it in CVS?
>>>
>>> -jeff
>>>   
>>
>>
>> Gene just a minor correction:
>> E1 is 32 channels not 31 as mentioned in the doc.
>>
>> And Jeff, the D channel is data and B is for bearer in the ISDN language.
>>
>> The D channel is used for signaling and data transfer like text messages
>> between ISDN devices.
>>
>> So the doc is correct on this point.
>>  
>>
> 
> No, Jeff is correct - the D channel is the Delta channel.
> 
> You are, however, correct that there are 32 channels (or, more
> accurately, timeslots) for E1.  Typically TS0 is used for framing and
> synchronization, and TS16 is used for signalling.
>

My apologies Jeff, delta it is.


/Mats