Edit and Change dialing timeout on polycom phones.

Prior to a firmware update, our Polycom phones had a dialing delay of 5 second prior to dialing the number. After the firmware upgrade this was broken and set to 1 second. This is annoying as it doesn't allow enough time for end users to punch in a number. Thus it dials partial numbers and assumes they are extensions. Please set this back to 5 seconds, and allow the user to push "send" on the phone to initiate the call.