J100 Phone snot changing SIP proxy when changed in 46xsettings

[MikeeOK]

We have a site with about 1800 J100 phones and need to change the IP Office IP address. We are actually migrating the phones from one IP Office to a replacement. The site doesn't have internet access for the phones so I can't use DES, even though I doubt that would help. (Server edition Running R11.1 currently)

Phones receive the file server address via DHCP.

Have been working on this in the lab.

Attempted to update the DHCP 242 option to be the new file server. The phone takes the details sets the file server correctly but doesn't change the SIP proxy.
Add the new SIP proxy with SIP_CONTROLLER_LIST= in the 242 options, this adds it but the previous one remains (at the top of the list)

To make it wors it sometimes works, no idea why.

Only option that I can get to work reliably is to default the phone. Not going to be fun with 1800 of them.

Any ideas would be appreciated

 

[msalvary]

Did you try a NoUser Source number?

 

[MikeeOK]

@ msalvary

No, whats is the option to use?

 

[tac84]

Wouldn't you use DHCP options 120 to nominate the IP Office IP Address?

 

[MikeeOK]

I gave it a go and it works the same as SIP_CONTROLLER_LIST= in the 242 options. So doesn't resolve the problem.

To be fair I am not surprised I believe the intent is for the phone to get the SIP proxy address from the 46xxsettings file not form DHCP.

 

[tac84]

When you say 46xxsettings, is the system not using the auto generated one? Most of the time any customisations would be made to 46xxspecials. Is there a 46xxspecials file that you've missed?

 

[MikeeOK]

@ tac84 Yep system generated 46xxsettngs as well as the 46xxspecials. The file is right if I default the phone, the fiel works fine.

 

[MikeeOK]

@ msalvary thanskf or the suggestion I looked up the NoUser Source number and found ENABLE_J100_FQDN

I loaded this and it updated the 46xxsettings file, so the phones are now using the systems FQDN, Pity I didn't know about this when I first set them up.

Thanks for the insight.

 

[derfloh]

I would think of the option to connect the new server and replace the old one by keeping the old IP.

Nonetheless, the phone update their configuration from 46xxsettings.tx/46xxspecials.txt in intervals. See this to adjust it: https://documentation.avaya.com/de-DE/bundle/IPOfficeSIPPhoneInstall/page/J100_Upgrade_Settings.html