BlackBerry 950 (introduced as "Inter@ctive Pager 950", development name "Leapfrog") is an early BlackBerry model, introduced in 1998 by Canadian smartphone manufacturer Research in Motion.[1] There were two editions, the Exchange Edition and the Internet Edition, both identical in hardware and differing only in the provided software; the Exchange Edition could connect to corporate email mailboxes running on Microsoft Exchange, while the Internet Edition could access general internet mailboxes only.[2]
BlackBerry 850 was a different version of this pager, released at later time, which, instead of 900 MHz modem, had an 800 MHz modem that allowed connectivity with the DataTAC network.