Cisco 8831 phone is not getting registed on cucme but in cucme it show sit is registred
-CME-Riyadh#sh voic register pool type 8831
Pool ID IP Address Ln DN Number State
==== ======================================= ======================================= == === ==================== ============
7 AC44.F214.9BD8 192.168.15.20 1 7 5002$ REGISTERED
voice register global
mode cme
source-address 192.168.15.9 port 5060
timeouts interdigit 5
max-dn 20
max-pool 20
load 9971 sip9971.9-4-2SR4-1.loads
load 8811 sip88xx.14-1-1-0001-125.loads
load 8841 sip88xx.14-1-1-0001-125.loads
load 8865 sip88xx.14-1-1-0001-125.loads
load 8831 sip8831.10-3-1SR6-4.loads
timezone 31
date-format D/M/Y
tftp-path flash:
create profile sync 0050571524018355
ntp-server 192.168.15.9 mode unicast
conference hardware
camera
video
auto-register
voice register pool 7
busy-trigger-per-button 2
id mac AC44.F214.9BD8
type 8831
number 1 dn 7
cor incoming CALL-GSM default
dtmf-relay rtp-nte sip-kpml
voice-class codec 1
no vad
voice register dn 7
number 5002
name KSA Conference
label KSA Conference
!
-CME-Riyadh#sh telephony-service
CONFIG (Version=12.3)
=====================
Version 12.3
Max phoneload sccp version 17
Max dspfarm sccp version 18
Please can any one help me what is wrong