Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!ames!elroy!gryphon!vector!telecom-gateway From: cowan@marob.masa.com (John Cowan) Newsgroups: comp.dcom.telecom Subject: Re: Number of devices on 1 line? Message-ID: Date: 12 Jun 89 17:52:16 GMT Sender: news@vector.Dallas.TX.US Reply-To: John Cowan Organization: ESCC New York City Lines: 27 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 197, message 6 of 10 In article westmark!dave@rutgers.edu (Dave Levenson) writes: >In article , nobody@cs.buffalo.edu >writes: >> How many devices can a single residential line support? At the moment I have >> 4 telephones, 1 answering machine, and 1 modem on the line. I am about to >> add a second modem and another phone. Is this "safe", and will it work? >What you must do is add up the ringer equivalence numbers of the various >devices you wish to connect. The maximum total REN for a given subscriber line The backward compatible maximum REN across the entire old-AT&T (BOC) system is supposed to be 5. So a maximum total REN of 5 should work on any private line anywhere, except perhaps one served by a Very Local Telco that hasn't upgraded since 1953. :-) But don't make assumptions: the local telco at my summer home, Taconic Telephone, is now one of the few all-digital telcos in the country! Fascist inews! Fascist inews! Fascist inews! Fascist inews! -- John Cowan or UUCP mailers: ...!uunet!hombre!{marob,magpie}!cowan Fidonet (last resort): 1:107/711 Aiya elenion ancalima!