FYI, I ran your script and on my first call using the handset after rebooting, the caller complained about a nasty echo of their voice. I turned the volume down to what I thought it sounded like before but they said they still had a bit of echo. We tested it on a couple of calls and then I reverted just hp.parameters file back to the original PR1.3 settings. Subsequent calls had no echo even when the volume was turned up to the max. Is it possible that adjusting the settings on the ear-piece interferes with an echo cancellation algrorithm which may be tuned for the original settings? --Brad