voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 sip
  registrar server
voice class codec 1
 codec preference 1 g711alaw
 codec preference 2 g711ulaw
voice register global
 max-dn 10
 max-pool 10
voice register pool 1
 id network 10.1.0.0 mask 255.255.255.0
 number 1 11
 voice-class codec 1
voice register pool 2
 id network 10.1.0.0 mask 255.255.255.0
 number 1 12
 voice-class codec 1