voice service voip
 ip address trusted list
  ipv4 192.168.123.0 255.255.255.0
  ipv4 54.172.60.0 255.255.255.0
 rtp-port range 10000 11000
 address-hiding
 mode border-element
 allow-connections sip to sip
 redirect ip2ip
 trace
 sip
  registrar server
  asserted-id pai
  early-offer forced
  midcall-signaling passthru
!
dial-peer voice 300 voip
 destination-pattern +T
 session protocol sipv2
 session target ipv4:192.168.123.247
 voice-class sip bind control source-interface GigabitEthernet1
 voice-class sip bind media source-interface GigabitEthernet1
 dtmf-relay rtp-nte
 codec g711ulaw
 no vad