[Asterisk-Users] Re: Sangoma A102 cards testing

[Steve Underwood]

Duane wrote:

>On Sun, February 13, 2005 23:19, Vikram Rangnekar said:
>
>  
>
>>I'm sorry i didnt quite understand what you meant why would i need 4
>>d-channels i've only used 16 and 47 as my dchannels and want span 1 to
>>generate the clock for this e1 setup.
>>    
>>
>
>As far as I'm aware each E1 has 30 b channels, and 2 d channels...
>  
>
Wrong. An E1 used for ISDN has 30 B channels, and 1 D channel. 1-16 and 
17-31 are Bs, 16 is the D. Channel 0 is used by the framers for 
synchronisation, and is not accessible as a channel by the user.

Regards,
Steve