cisco cp-7942g problem

[wael azzam]

hi all.

we bought new cisco cp-7942G ip phone .after installation and configure it to ccme ,it doesnt register to cme oe even get ip in the voice vlan .

And it just show (configuring ip) message on the screen

SO what is happen??

[ronpatel · Accepted solution]

Hi,

How is DHCP configured. Can you share the config of the router. Is DHCp enabled on Ip phone.

regards

Ronak Patel

Please rate helpful posts.

[wael azzam]

dhcp is configured and the other phones can get ip

[wael azzam]

this is dhcp configuration

ip dhcp pool DHCPserver

   network 192.168.2.0 255.255.255.0

   option 150 ip 192.168.1.1 // loopback interface

   default-router 192.168.2.1

this is the new phone conf.

ephone-dn  86

number 2220

description wael

name wael

ephone  86

mac-address 2037.0616.E36B

type 7942

button  1:86

[Gajanan Pande]

Wael,

Did you compare the Switch Port config of this phone ( in issue ) with other working phones ? Any difference ?

GP.

Pls rate helpful posts !!

[abarkalg]

Hi Wael,

             Check if the Port where the phone is plugged into has the voice lan confgured (switchport voice vlan ). Also try to see if you can give the IP manually on the phone and check if it registers. Make sure the DHCP is enabled in the CME to give the IP to the phone.

Do you have other phones which are registered to this CME?

Please rate helpful posts!!!

Regards,

Abdul

[wael azzam]

i install another one 7912 in the same port its ok

[wael azzam]

how can i  give ip manually to the phone

[ronpatel]

Hi

for giving ip address manually

1) Do **#

2) Disable DHCP yes

3) Give ip address, Mast, Default gateway and Tftp ip address.

regards

Ronak Patel

Rate helpful posts

[ronpatel]

Hi,

Do you see any CCM ip address already present in ip phones configuration. If yes do one thing

1) Press **#

2) Go to erase configurtion and select yes.

3) It will restart and it will start configuring phone again.

Tell us what happens after that.

Also send debug tftp outputs when this phones is regestering after the bove procedure.

Regards

Ronak patel

Please rate helpful posts  

[wael azzam]

better than before but it get ip in the data vlan even though it see voice vlan not data

[ronpatel]

HI

Paste configuration from the switch port in which this phone is connected.

Regards

Ronak Patel

Rate helpful posts

[wael azzam]

bingo

its done

[wael azzam]

the switchs we have 300 series ,i found that i must enter part of mac of the phone using switch gui

Thanks every one for helping me

[CSCO11256353]

sorry but i did't get the solution. will you please explain a little bit what you did there.