asterisk users - Sep 2016 - Panasonic PBX connect to Asterisk (Ikka Tirtawidjaja)

Dear ikka
Thanks, well the best way is by  SIP to E1 ISDN gateway (could use Digium,
Audiocodes, Sangoma, etc.).
But should contemplated on KX-TDA600 ISDN PRI card KX-TDA0290 and configure as
QSIG signalling.
I don't recommend to use ATA FXS converter, first problem you couldn't
dial to any extension to KX-TDA600, PBX answer incoming call from analogue line
through Voice mail configured as Automated attendant, or DISA card.
The other point is line attenuation. 

Mc GRATH Ricardo