sparks@larch.cadif.cornell.edu (Steve Gaarder) (05/10/89)
I need a device that will simulate 2 phone lines for the purpose of testing data communications equipment. Ideally, it would provide dial tone, and when dialing was detected, ring the other line. I could also use a simpler unit that would provide dial tone and ring voltage under manual control. This latter I could build, and will if I can't find something ready-made. For that, I need to know what the frequencies of a standard dial tone are, and where I can get a 100V 20Hz ring supply. Thanks, Steven Gaarder sparks@larch.cadif.cornell.edu
brendan@jolnet.orpk.il.us (Brendan Kehoe) (05/13/89)
Steve Gaarder wrote in comp.dcom.telecom article <telecom-v09i0159m02@vector. dallas.tx.us>: >X-TELECOM-Digest: volume 9, issue 159, message 2 of 8 >For that, I need to know what the frequencies of a standard dial tone are, >and where I can get a 100V 20Hz ring supply. A dial tone is 350 & 440, continuous..in case ya want 'em, busy is 480 & 620, .5 on, .5 off... -- Brendan Kehoe brendan@cup.portal.com | GEnie: B.KEHOE | Oh no! I forgot to say goodbye brendan@chinet.chi.il.us | CI$: 71750,2501 | to my mind! brendan@jolnet.orpk.il.us | Galaxy: Brendan | - Abby Normal