Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!uwm.edu!lll-winken!telecom-request From: dave@westmark.westmark.com (Dave Levenson) Newsgroups: comp.dcom.telecom Subject: Re: Information Needed on WE 2500 DM Set Message-ID: Date: 31 Mar 91 15:49:33 GMT Sender: Telecom@eecs.nwu.edu Organization: Westmark, Inc., Warren, NJ, USA Lines: 26 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 258, Message 11 of 11 In article , davidb@pacer.uucp (David Barts) writes: > Recently, someone posted that a 500 D set was just like a 500 set, > except it was designed for use on a party line with divided ringing. I > own two Western Electric 2500 DM sets that were formerly used on a > LARGE centrex system (two NNX prefixes!). What is the difference > between a 2500 DM and a "normal" 2500 set? The 500 D was a Dial set. (The 500 C was the non-dial version with the large round plastic cover where the dial was.) Many older telephone sets carry the designation 500C/D meaning that they were field-convertible between dial and non-dial use. The 2500 is the 500 with touch-tone dialing, and was sometimes identified as 2500 D. (There was no 2500 C, however, since the 500 C would work just as well!) Eventually, the D was dropped. The M was added when modular hardware was installed. A 2500 DM means a dial set with touch-tone, and modular handset and mounting cords. Dave Levenson Internet: dave@westmark.com Westmark, Inc. UUCP: {uunet | rutgers | att}!westmark!dave Warren, NJ, USA AT&T Mail: !westmark!dave Voice: 908 647 0900 Fax: 908 647 6857