X1OOP dial problem with complete config

Hi friends,

I have bought a new x100p card, and i have edited all config files for PSTN to dial with success.

When i dial a number from Xlite ( to PSTN line ) it says it is established but no ring process exists, also there is no real call process.
There is no sign on other PSTN point ( no ring, no call)

my config is below,

fxsks=1
loadzone=tr
defaultzone=tr

my zaptel has been compiled for Turkish TELCO line.

[channels]
context=pots_line
busydetect=yes
busycount=5
usercallerid=yes
hidecallerid=no
immediate=no
signalling=fxs_ks
callerid= pots <2001>
echocancel=yes
group=1
channel=>1

CLI > zap show status

Wildcard X100P Board 1 OK 0 0 0

extensions.conf

[pots_line]

exten => 2001,1,Dial(SIP/2001)

exten => 1111,1,Dial(Zap/1/<phone number of peer>)
exten => 1111,2,Hangup()

Thanks in advance,