x100pclone problem outgoing calls-Dial tone and nothing else

I have x100p clone card. Incoming calls work fine, but when I dialing a number I hear pstn dial tone and nothing else. No dtmf, no call.

/etc/asterisk/zapata.conf

[channels]

language=pl
signalling=fxs_ks

usecallerid=yes
hidecallerid=no
transfer=yes
echocancel=yes
echocancelwhenbridged=yes
group=1
pickupgroup=1
musiconhold=default
rxgain=10.5
txgain=-4.5
callerid=asreceived
channel => 1

extensions.conf

[outgoing]
exten => _3X.,1,Dial,Zap/1/${EXTEN:1}

Any suggestions?