AlphaMate 250TM  

The Motorola AlphaMate 250TM is a standalone keyboard and display screen that connects to a standard phone line through its internal modem. Designed for medium to high volume alphanumeric paging applications, it batches calls for a faster system throughout. With Alphamate 250TM you can send a 100-character message to any alphanumeric pager, without going through a dispatch service. Alphamate 250TM has a standard typewriter keyboard, a 300 baud modem, a 2-line, 80-character LCD display screen and 32K memory 

It boots up but I cannot test it. Pulled from a working condition