Enable Router to PSTN Calls - Outbound

dial-peer voice 1 pots
destination-pattern 999
forward-digits all
port0/2/0:15
!
dial-peer voice 2 pots
destination-pattern 9[2-9].......
forward-digits 8
port 0/2/0:15
!
dial-peer voice 3 pots
destination-pattern 9001[2-9]..[2-9]......
forward-digits 13
port 0/2/0:15
// you can use the csim 999 or csim 9444444040 command to simulate the call