The NV-VP30 has two available remote frequencies, named as VCR1 and VCR2 in the settings Menu/Other on the main unit.
You may have the remote set to the alternative remote frequency.
You need to match the Handset to the Main Unit. ie. Both need to be set to the same frequncy, either VCR1 or VCR2.
To alter the handset frequency, press and hold down ENTER and either 1 or 2 at the same time.
If it doesn't work with ENTER+1 = VCR1, you should try ENTER+2 = VCR2.
Cobweb, April 2007