IP Phones Cannot Find DHCP Server

[rolo]

Team, I need your help resolving the following issue.

When I plug a 1616 & a 9620 IP phone is stuck in te DHCP loop; it cannot find the DHCP server. (I do not want to give it a static IP.)

Note: I have other IP phones (4630, 4624, 4620, 4610 & 9630) that are currently connecting without any problem.

1) Is there some kind of file I need to upload somewhere; if so what file and where do I upload the file/s to?
2) What documentation I need in order to upload any file if needed?

Thanks.

[sabbannagari]

CM is configured with DHCP server and the file server is also DHCP server.All phones (9640G) which are connected to CM are upgraded with 2.0 bins (core) from the file server.
Now I configured a created a group on CM(group =10).
The call server for group 10 is different.(not CM)
When on 9640G phones has group set to 10.
Then they will be registered on IPOffice.
But IPOffice does not support 9640G phones with 2.0 bins (core).

Now If I change the HTTPserver for group 10 to pick 3.0 bins (core), The phones keep on showing "Discover <callserver_ip>".

My queries:
1) how should I configure CM to install 3.0 bins on 9640G only for group 10.

[rastogi]

1) If 46xx series and 9630 phones are working fine, then there should be something in the setup ( of 1616 & 9620 phones) which is causing problem.

2) For testing, replace working 9630 phone to a 9620 phone and check if same works or not. Idea is to use the same setup/settings of 9630 and if this works, settings ( upgrade.txt & setting files) needs to be checked for 9620 phones. Its a good idea to check and compare 9620/1616 option 242 with working phones.

3) Sniffer can also be taken for further analysis. This would help to understand where things are going wrong.

4) Group System Value along with setting files needs to be checked if "Group ID" feature is being used.
The GROUP System Value
You might have different communities of end users all of which have the same model telephone but require different administered settings. For example, you might want to restrict Call Center agents from being able to Log off, which might be an essential capability for 'hot-desking' associates. Or you might want to assign your SIP telephone users to different messaging systems or registration/proxy servers. Examples for the group settings for each of these situations are provided later in this section.
As of Release 2.0, the simplest way to separate groups of users is to associate each of them with a number. You then edit the 46xxsettings file so that each group is assigned the appropriate settings. Use the GROUP system value for this purpose. The GROUP system value cannot be set in the 46xxsettings file. The GROUP System value can only be set on a telephone-by-telephone basis.

Once the GROUP assignments are in place, edit the settings file to allow each telephone of the appropriate group to download its proper settings. Here is an example of the settings file for the Call Center agent:

IF $GROUP SEQ 1 goto CALL CENTER
IF $GROUP SEQ 2 goto HOT DESK
{specify settings unique to Group 0}
goto END
# CALL CENTER
{specify settings unique to Group 1}
goto END
# HOT DESK
{specify settings unique to Group 2}
# END
{specify settings common to all Groups}

Suppose user configured 3 groups in settings file. If a station is registering to one extension, first of all, this phone will have default group ID settings. This is because when a phone registers to CLAN for the first time, Communication Manager (CM) does not know which extension this phone is getting registered. Before you enter the extension, settings file will be loaded. In order to get this Group ID in effect, phone should be reset once more.

And also if a station is changing the extension to another extension which is having different Group ID, then the Phone will be in the old group ID (first time). Again phone needs to reset once more to get the new Group ID in effect.

Hope this helps....

[kantr]

Please check the DHCP Scope used for the 16xx and 96xx IP phones. It should be 242.

[dnaiara]

look at this configuration i did at a G350. I think it would be useful.

G350-003(super)# ip dhcp pool 1
G350-003(super-DHCP 1)# start-ip-addr 192.168.1.60
Done!
G350-003(super-DHCP 1)# end-ip-addr 192.168.1.65
Done!
G350-003(super-DHCP 1)# default-router 192.168.1.15
Done!
G350-003(super-DHCP 1)# subnet-mask 255.255.255.0
Done!
G350-003(super-DHCP 1)# lease infinite
Done!
G350-003(super-DHCP 1)# option 176
G350-003(super-DHCP 1/option 176)# value ascii MCIPADD=192.168.1.15,MCPORT=1719 (colocar endereço da CLAN)
Done!
G350-003(super-DHCP 1/option 176)# exit
G350-003(super-DHCP 1)# option 242
G350-003(super-DHCP 1/option 242)# value ascii MCIPADD=192.168.1.15,MCPORT=1719
Done!
G350-003(super-DHCP 1/option 242)# exit
G350-003(super-DHCP 1)# exit
G350-003(super)# ip dhcp activate pool 1
Done!
G350-003(super)# ip dhcp-server
Done!
G350-003(super)# copy run startup-config
Warning! It is a recommended policy to override default configuration
master key with user defined secret - for details see user reference.
Otherwise device saves configuration secrets using Avaya default secret.
Beginning copy operation .................... Done!

[ts185014]

Originally Posted by rolo

Team, I need your help resolving the following issue.

When I plug a 1616 & a 9620 IP phone is stuck in te DHCP loop; it cannot find the DHCP server. (I do not want to give it a static IP.)

Note: I have other IP phones (4630, 4624, 4620, 4610 & 9630) that are currently connecting without any problem.

1) Is there some kind of file I need to upload somewhere; if so what file and where do I upload the file/s to?
2) What documentation I need in order to upload any file if needed?

Thanks.

Hi,

46XX series phones under the firmware file to the TFTP server is discarded. One x (16, 96xx) series phones are thrown into a directory in the HTTP files. Or on the phone under the DHCP scope, then the TFTP server address is written to a phone line and go there and take pplication and the boot file will update itself according to the CM version.

Turgay