Customer would like to use a Panasonic crdless set on an analog port. i have the user quide for the analog phones but they cant seem to get the features to work. they want to be able to do all features,use this phone to acdt like the front desk. would the NEC anlog crdles work better than the Panasonic. I have givin them the cost of the Digitl crdlss and showed them how it would be better but they don't want to spend that much right now and try to get a analog set to work