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 throwing the 6 -8 month old phones away (they are still brand new). Does the phone memory need to flush or what can be done if anything?

Hi Chirag,

On the web interface, use
1 Click System Maintenance > Purge Data.
2 Click Purge Database
This ll do fact reset.

HTH
-Karthik.

try 192.168.2.1 / 192.168.2.0 / 192.168.0.1

hope it works.

enjoy

3Com was purchased by HP and has discontinued the NBX product line and support. They have also as of September 31, 2013 stopped selling licenses. Some resellers are still able to get them but I'm sure that will stop soon enough. The NBX tech support number I had was for tech support is now a prize hotline number.

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.

Assuming you are talking about remote phones, you need to program the NCP (call processor) IP into the phones manually or add option 187 to your DHCP scope. The phones are able to DHCP the just also need to know what the IP address of the phone system to connect to is. If the phones are on your local network then this is all unnecessary. They work at layer 2 locally and don't need to use an IP address or DHCP.

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.

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

You should be using a plantronics a-10 interface cable if you are using hardwire headsets. get rid of the m-20 amplifiers. I support 280 of these phones and the best solution is to replace the phone. Power cycling the phone will help for a while but the problem will come back.

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.

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.