Question about 3Com NBX 3102 IP Phone

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Roll back phone software

I received a 3Com 3102 phone with R5.3.0 software on it but our system only has R5.0.25 software. How can I roll back the software on the phone? It is currently in a continuous reboot.

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Re: Roll back phone software

Add the NBX's IP and mac address to phone. Also static it on the same subnet.
It will go through about three long reboots.
If it doesn't work change the NBX to anything but "ethernet only" and reboot it. Then reboot phone with the above settings.

Posted on Jan 14, 2012

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Re: Roll back phone software

The phone is in a continuous because it is trying to connect to the NBX. You need to make sure it is on the same network as the NBX. Also, within the NBX you need to make sure Auto-Discovery is enabled. You also need to check how many group 2 licenses you have, as this phone requires one to run on the NBX.

Posted on Jan 29, 2008

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How do i reset voicemail password on 3com 3120 phone?

On 5.0 and older software, Log into the NBX Phone system as administrator and click on "tab to it". Then click on the "security" tab under System Configuration. Click on "Reset User Password". Highlight the user you want to reset and then click "reset. The system will reset the password to the same as the extension number.
On 6.0 and later software, Log into the Phone system and go to "System Maintenance, Password Administration". Select "User Password" in the drop down menu and click "Go". Select the box on the left for the extension you want to reset and click on the "Reset Password" button at the top of the list. The system will reset the password to the same as the extension

Hope that helps!

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try / /

hope it works.


Feb 15, 2008 | 3Com NBX 3102 IP Phone

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You can't web to a 3102 phone, only the phone system. If you don't know what the IP address is on the phone system, you will have to get a serial cable (null modem cable) DB9 male to DB9 female and connect to the console 1 of the phone system. You will need a terminal emulator program and connect at 9600, 8, none and 1 for the settings. Type nbxIpConfig (case sensitive) and hit enter. The IP address will then be shown. If this is not what you were asking, please explain.

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1 Answer

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Hi Chirag,

On the web interface, use
1 Click System Maintenance > Purge Data.
2 Click Purge Database
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Oct 02, 2012 | 3Com NBX 3102 IP Phone

1 Answer

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As long as someone hasn't been poking around in the phone system, this is a phone company issue. I have seen this many times and it has always been a carrier issue. Typically with PRI's or integrated access analog lines.

May 08, 2012 | 3Com NBX 3102 IP Phone

1 Answer

When someone call 3Com NBX 3102 IP Phone we cannot hear them talking, but they can hear us. I tried it on three 3Com systems and same thing happens. We get problems like these often and we are just...

If the phones are only 6-8 months old you should be calling 3Com. those phones have a 1 year warranty and once you register them they will help you troubleshoot and replace them if needed. Can you provide more detail? Do you have any network issues while this is happening? Does speakerphone work but the handset doesn't?

Apr 29, 2010 | 3Com NBX 3102 IP Phone

1 Answer

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3102 phones require group 2 licenses purchased from an authorized NBX reseller. if you don't have enough the system will not allow the phone to be discovered. You can check this unler the licenses tab while logged into the phone system as administrator.

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Delete the MAc Address from the system and delete the user account. Re add the phone.

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The problem is licensing for a 3102 phone. I doubt an old NBX 100 has a group 2 license. The 3102 requires a license to run unlike the 1102 or 2102.

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1 Answer


You have to log into the system as Admin and enable CO COdes for the CLass of Service you are in. Its easy, at least the Admin should be able to do it.

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