[asterisk-users] dahdi with isdn nt_mode, phone no signal still.

Patrick Lists asterisk-list at puzzled.xs4all.nl
Tue Aug 30 13:05:20 CDT 2011


On 08/30/2011 06:32 PM, Tamer Higazi wrote:
> Hi people!
> I have managed to set up asterisk 1.8.5. with my 2 ISDN HFC boards on
> asterisk. On which DAHDI tells me also properly that both of my boards
> are registered, one in TE and the other on in NT mode.
>
> Calls do successfully come inside, but I want to connect my ISDN phone
> at the board, but the phone is death. What did I make wrong?!

Afaik ISDN phones need power to work. You would need a HFC-S card with a 
power plug where you can hook up power from the computer's power supply 
so the card can power the phone. Like Sangoma's B700. Alternatively 
perhaps you could try to power the phone through an NT1?

Would you mind sharing which version of DAHDI you used and where you got 
the HFC-S patch?

Regards,
Patrick



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