IP Phone Can't Recover Its Configuration from CUCM

[aelankoud]

Hello,
I have a problem configuring the IP Phones, I register the post, in CUCM, and when I plug the IP Phone into the Switch, the station does not recover its network configuration, I give you the elements of my Lab: CUCM 11.5, Cisco ROuter 2901, Catalyst 2960 PoE Switch, and IP Phone 7911,
Here is the configuration of my Router (my Router configured also as DHCP and DNS Server) :

hostname GATEWAY-VOIP
!
boot-start-marker
boot-end-marker
!
!
! card type command needed for slot/vwic-slot 0/0
logging buffered 51200 warnings
!
no aaa new-model
bsd-client server url https://cloudsso.cisco.com/as/token.oauth2
!
ip dhcp excluded-address 10.2.7.1
ip dhcp excluded-address 10.2.7.2
ip dhcp excluded-address 10.2.7.3
ip dhcp excluded-address 10.2.10.10
ip dhcp excluded-address 10.2.10.11
ip dhcp excluded-address 10.2.10.12
ip dhcp excluded-address 10.2.10.13
ip dhcp excluded-address 10.2.10.14
ip dhcp excluded-address 10.2.10.15
ip dhcp excluded-address 10.2.10.1
ip dhcp excluded-address 10.2.10.2
ip dhcp excluded-address 10.2.10.3
!
ip dhcp pool dpool1
 import all
 network 10.2.7.0 255.255.255.0
 default-router 10.2.7.12
 dns-server 10.2.7.12
 domain-name cisco.ma
exit
ip dhcp pool dpool2
 import all
 network 10.2.10.0 255.255.255.0
 default-router 10.2.7.12
 dns-server 10.2.7.12
 domain-name cisco.ma
!
no ip domain lookup
ip domain name cisco.ma
ip name-server 10.2.7.12
ip cef
no ipv6 cef
multilink bundle-name authenticated
!
voice-card 0
!
!
voice call send-alert
!
voice service voip
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
 h323
  session transport udp
!
voice class h323 1
  call start fast
!
license udi pid CISCO2901/K9 sn FGL204610JC
hw-module pvdm 0/0
!
username admin privilege 15 password 7 06350E2D491C594852
!
redundancy
!
ip ssh time-out 50
ip ssh authentication-retries 4
ip ssh version 2
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
 ip address 10.2.7.12 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
ip forward-protocol nd
!
no ip http server
ip http access-class 23
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip dns server
ip route 0.0.0.0 0.0.0.0 10.2.7.1
!
control-plane
!
voice-port 0/1/0
 timeouts interdigit 4
 connection plar opx 1111
 caller-id enable
!
voice-port 0/1/1
 timeouts interdigit 4
 connection plar opx 1111
 caller-id enable
!
voice-port 0/1/2
 timeouts interdigit 4
 connection plar opx 1100
 caller-id enable
!
voice-port 0/1/3
 timeouts interdigit 4
 connection plar opx 1100
 caller-id enable
 !
dial-peer voice 1 voip
 destination-pattern 1...
 progress_ind setup enable 3
 session target ipv4:10.2.7.13
 incoming called-number 0T
 codec g711ulaw
 no vad
!
dial-peer voice 2 pots
 preference 1
 destination-pattern 0T
 port 0/1/0
 forward-digits all
!
dial-peer voice 3 pots
 preference 2
 destination-pattern 0T
 port 0/1/1
 forward-digits all
!
dial-peer voice 4 pots
 preference 3
 destination-pattern 0T
 port 0/1/2
 forward-digits all
!
dial-peer voice 5 pots
 preference 4
 destination-pattern 0T
 port 0/1/3
 forward-digits all

gatekeeper
 shutdown
!
line con 0
 login local
line aux 0
 no activation-character
 no exec
 transport preferred none
 transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
 stopbits 1
line 2
 no activation-character
 no exec
 transport preferred none
 transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
 stopbits 1
line vty 0 4
 access-class 23 in
 privilege level 15
 login local
 transport input telnet ssh
line vty 5 15
 access-class 23 in
 privilege level 15
 login local
 transport input telnet ssh
!
scheduler allocate 20000 1000
ntp master 3
!
end

/////////////////////////// ********

The configuration of my Switch is in join with the screens of the configuration of IP Phone to the CUCM,

thank you for helping me

[Rajan]

Hi,

Can you confirm whether the DHCP optional parameters especially option 150 for providing the TFTP server details to the phone are imported properly. if not, try configuring, option 150 ip address manually so that phones know the TFTP server to pull its config from. Also check whether the switch port where the phone is connected is configured in the correct voice vlan to get the details.

HTH

Rajan

Pls rate all useful posts

[aelankoud]

Thanks for your reply, the switch ports are configured correctly in both Data / Voice VLANs.
But how can I confirm the 150 option in CUCM ?? I have already defined the address of the TFTP server in the Primary TFTP and Secondary TFTP field (that is: 10.2.7.13)

You find in join, the screen shot of the DHCP Information window in CUCM

10.2.7.13 : @ CUCM

10.2.7.12 : @ Voice Gateway, DNS, DHCP
Thank you
Youssef

[Mohammed al Baqari]

Hi,

Your router configuration is have lot of mistakes. Anyway, you didn't configure option-150 in your dhcp pool.

ip dhcp pool dpool1
 import all
 network 10.2.7.0 255.255.255.0
 default-router 10.2.7.12
 dns-server 10.2.7.12
 domain-name cisco.ma

option 150 ip 10.2.7.13
exit

Also, your 2nd DHCP pool is wrongly configured. You can't provide addresses in 10.2.10.0 subnet and use the gateway from 10.2.7.0 subnet. The gateway should be in the same subnet of the pool

ip dhcp pool dpool2
 import all
 network 10.2.10.0 255.255.255.0
 default-router 10.2.7.12
 dns-server 10.2.7.12
 domain-name cisco.ma

[aelankoud]

Hi Mohemmed,

thank you for your reply

I added option 150, and i created two sub-interface on Gig0/1 (Vlan 10 : Voice, Vlan 8 : Data and the first VLAN 7 : Admin) port connected with port trunk on switch, all workin well

i added IP Pohne 7911 on CUCM 11.5, The IP phone restarts each time and displays this window (in join), i uploaded the FW SCCP11.8-5-3S on CUCM, why can not the phone recover its configuration?
N.B: I have already reset the IP Phone on Factory Default

thank you

[aelankoud]

I want to migrate from CME to CUCM, so I just made a test on IP Phones 7911, 7931, 7975, which are already configured at CME.
I have added another IP Phone to the CUCM which is already configured to CME v7, my router, switch and my CUCM server are isolated to the CME, the IP Phone retrieves its Vlan Voice, DNS, TFTP1: 10.2.7.13 (@ IP CUCM), when I manually check the IP Phone, I find the CME address 10.2.7.254 in the Cisco Unified CM 1 (join)
Why it also has this address, knowing that my Lab (Router, Switch and CUCM are isolated from CME?

thank you.