Hello.. We have the parter-18D phone system. one of the phone rings when there is an incoming call, but it shouldn't, since this is not the main phone Ext 10. How can I program this phone to ring only when is a transfer call. Thanks

Changing ringing on a Partner system is done on either ext 10 or 11.
At one of those ext's press the feature key and "00"
Next press the left hand intercom twice
The display should say system programming

Press the right hand intercom once. The display should say Centralized Programming.

Enter in the extension number that you want to program.

Press the line that you want to ring.
A solid light on the line means immediate ringing
A slow flashing light means delayed ringing (meaning the phone will wait 3 rings before starting to ring.)
A fast flashing light means no ringing.

When finished with that station press the right hand intercom and enter in the next extension to program and set ringing accordingly.

Press feature "00" to logout

On the phone to be programmed:
1. Press "Feature 0 0"
2. Press the line button(s) to be changed, until desired effect below
-- Steady Green - Immediate Ring
-- Slow Flash - Delayed Ring (after 20 seconds)
-- Fast Flutter - No Ring
3. Press "Feature 0 0" again to end.

That's all there is to it.