Not able to call external No


I installed fedora 7 with asterisk1.4 and zaptel 1.4

I can ablt to talk each other using xlite softphone.

I have Digium TDM400P card with FXO port.

I was connected one of my extension no is 29, in FXO port,

when i call using softphone to my mobile no or landline it say the call is established, and it’s giving abnormal sound.

normally i call using 0 dial

I also configured extension.conf like

exten => _0XXXXXXXXXX etc, etc, (zap/g1) like this

(NOTE: same configuraitn i have installed asterisknow, and i can able to call using my softphone to my mobile or land line)

Thanks & Regards,