CME SCCP Phones Registration

ip dhcp excluded-address 10.10.10.1 10.10.10.10 
ip dhcp excluded-address 192.168.10.1 192.168.10.10 
! 
ip dhcp pool data
   network 10.10.10.0 255.255.255.0
   default-router 10.10.10.1 
! 
ip dhcp pool voice
   network 192.168.10.0 255.255.255.0
   option 150 ip 192.168.10.1
   default-router 192.168.10.1 
!
 ===============Configure Voice Service parameters======================= 
voice service voip
 allow-connections sip to sip
 sip
  registrar server expires max 1200 min 300 
! 
===============Configure Voice Register Global Parameters=============== 
voice register global
 mode cme
 source-address 192.168.10.1 port 5060
 max-dn 20
 max-pool 10
 authenticate register
 authenticate realm cisco.com
 tftp-path flash:
 create profile
 dialplan-pattern 1 4085251... extension-length 3 ! 
================Configure Extension and Parameters====================== 
voice register dn 1 
name Phone1 
label 4085251001 
number 101 
call-forward b2bua noan 100 timeout 20 
call-forward b2bua busy 100 timeout 20 
! 
voice register dn 2 
name Phone2 
label 4085251002 
number 102 
call-forward b2bua noan 100 timeout 20 
call-forward b2bua busy 100 timeout 20 
! 
voice register dn 3 
name Phone3
label 4085251003 
number 103 
call-forward b2bua noan 100 timeout 20 
call-forward b2bua busy 100 timeout 20 
! 
voice register dn 4 
name Phone4 
label 4085251004 
number 104 
call-forward b2bua noan 100 timeout 20 
call-forward b2bua busy 100 timeout 20 
! 
=============Configure SIP Phone=========================== 
voice register pool 3
 id mac 001A.A11B.500E
 type 3911
 number 1 dn 3
 dtmf-relay sip-notify
 codec g711ulaw
 username user1 password cisco 
! 
=============Configure SNR=============================== 
ephone-dn 3 octo-line
 number 645
 label 645
 description User
 name User
 mobility
 snr 998180433 delay 5 timeout 15 ! ephone-template 1
 softkeys idle Redial Newcall Mobility Cfwdall Pickup Dnd
 softkeys connected Endcall Hold Mobility ! ephone 3
 device-security-mode none
 mac-address 0023.5EB7.2949
 ephone-template 1
 type 7961
 button 1:3