Home
| Calendar
| Mail Lists
| List Archives
| Desktop SIG
| Hardware Hacking SIG
Wiki | Flickr | PicasaWeb | Video | Maps & Directions | Installfests | Keysignings Linux Cafe | Meeting Notes | Linux Links | Bling | About BLU |
On Monday 31 January 2005 15:29, Jack Coats wrote: > In the old phone days, the RBOC (before they were RBOCs) would test the > ringers on every phone line regularly (quarterly or so) to see how many > extentions you had. ?Newer phones had a REN (Ringer Equivalency Number) > below one (like .2). ?I think the maximum allowed on a private line was 5 > REN. ?And phones with no ringer, or the ringer turned off was 0. ?I think > you can still find the REN listed on each phone (at least the hardwired > phones or the bases of remote phones) to figure out how much you need. > ?This really had to do with how much current the phone company had to > supply to drive the bell type ringers on the old phones. Back in those days, before you could install a modem you had to get an interface from Ma Bell. Also, your phones had to be manufactured by Western Electric and rented to you by the phone company. -- Jerry Feldman <gerald.feldman at hp.com> Partner Technology Access Center (contractor) (PTAC-MA) Hewlett-Packard Co. 550 King Street LKG2a-X2 Littleton, Ma. 01460 (978)506-5243
BLU is a member of BostonUserGroups | |
We also thank MIT for the use of their facilities. |