The handset includes an automatic last-number redial function which is capable of repeating up to 31 digits. It also features a number memory storage capability allowing the technician to store up to 10 different numbers of up to 15 digits each including the insertion of 3-second pauses for use with trunk lines. A pre-installed CR2032 lithium battery maintains the stored number memory and can be easily replaced by removing two screws and opening the handset.
To assist in line testing the kit includes a 5-inch 4-wire RJ11 test lead with spade lugs on the ends of each wire. Additionally a 2.5mm headphone jack allows the technician to utilize a microphone/headset unit instead of the handset speaker and mic. When not in use the headphone jack is protected from moisture with a rubber cover.