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 expires max 120 min 60
voice class codec 1
 codec preference 1 g711alaw
 codec preference 2 g711ulaw
voice register global
 mode cme
 source-address 10.1.0.10 port 5060
 max-dn 20
 max-pool 10
 load 7971 SIP70.9-4-2SR3-1S
 authenticate register
 authenticate realm cisco.com
 dialplan-pattern 1 10 extension-length 1
 tftp-path flash:
 create profile
voice register dn  1
 number 16
 name 16
 label 16
voice register pool  1
 id mac 0018.73F7.FBB7
 type 7971
 number 1 dn 1
 dtmf-relay cisco-rtp
 username cisco password cisco
 codec g711alaw
 privacy off