Cisco Cisco IOS XE 3.13S

ip http server
no ip http secure-server
control-plane
!
!
!
voice-port 1/0:23
!
voice-port 2/1/0

connection plar 5550102

!
voice-port 2/1/1
!
voice-port 2/1/2
!
voice-port 2/1/3
!
!
!
!
dial-peer cor custom
!
dial-peer voice 100 pots

destination-pattern 5550101
incoming called-number 5550191
direct-inward-dial
port 1/0:23
forward-digits all

!
dial-peer voice 101 voip

destination-pattern 5550191
modem passthrough nse codec g711ulaw
voice-class codec 1
session target ipv4:10.4.127.4
dtmf-relay rtp-nte
no vad

!
dial-peer voice 102 voip

destination-pattern 5550102
voice-class codec 1
session target ipv4:10.4.127.4
dtmf-relay rtp-nte
no vad

dial-peer voice 200 pots

destination-pattern 5550110
incoming called-number 5550100
port 2/1/1

!
dial-peer voice 201 voip

destination-pattern 5550010
voice-class codec 1
session target ipv4:10.4.127.4
no vad

!
dial-peer voice 300 pots

destination-pattern 5550120
incoming called-number 5550150
port 2/1/2

!
dial-peer voice 301 voip

destination-pattern 5550150
voice-class codec 1
session target ipv4:10.4.127.4
no vad

!
gateway

timer receive-rtp 1200

!
!
!
!
line con 0

exec-timeout 0 0