How can I make a single-line phone dial a number as soon as it is picked up?
This feature can be very useful if you want to program a single-line phone to call 911 or another important number, and it can also make a modem or fax choose a specific line, or even any available line, before dialing out. Look in the large User Manual, in the section called SLT Features, for “Pickup Dialing (Hot Line)”. Programming this is a two step process. First you program the phone number that you want to dial, or a code such as 9 or 83), and then you activate the feature. If you want to program a jack that will be used by a modem, temporarily put a single-line phone into the jack, for programming.