💾 Archived View for spam.works › mirrors › textfiles › phreak › other.phk captured on 2023-06-16 at 19:46:57.
-=-=-=-=-=-=-
File: Hertz of Telco Tones
>>===========================================================<<
>> ANOTHER TELECOMMUNICATIONS PHILE FROM THE ARCHIVES OF THE <<
>> PRIVATE SECTOR BBS (201) 366-4431, OFFICIAL BOARD OF 2600 <<
>> FOR BEST RESULTS WHEN READING TRY 80 COLUMNS / LOWER CASE <<
>>===========================================================<<
TELCO TONES by Compy
Well, last night I took the telephone and a few oscillators to see what
combination of tones formed the dial-tone, busy-signal, etc... Here they are:
Dial-tone: 350hz and 440hz
Busy-signal: 620hz and 440hz - on for 1/2 second, off for 1/2 second...
Attention: (blasting tone you get when you forget to hang up the phone: 1400hz,
2060hz, 2450hz, 2600hz all mixed together. (Pulsed at a rate of 5hz)
Ring: 440hz, 480 hz.
Also, you cannot hear the following tones, but when your phone rings, the
switching office sends the following signals to activate different types of
'ringing' sounds:
Decimonic ring: 20, 30, 40, 50hz
Harmonic ring: 16-2/3, 25, 33-1/3, 50hz
Synchromonic ring: 20, 30, 42, 54hz
On the standard ESSX or DMS-100 switching systems, you only get one type of
ring. However, if you are on a SLC-60 switching system (coming soon from Bell),
the phone company can choose which one you get by the flip of a switch...
>>===========================================================<<
>>=> PHOR THE BEST IN TELECOMMUNICATIONS INPHORMATION READ <=<<
>>===========================================================<<
>> 2600 MAGAZINE, BOX 752, MIDDLE ISLAND, NY 11953-0752 <<
>> 12$ A YEAR, 1$ FOR BACK ISSUES <<
>>===========================================================<<
>>=> FOR THE BEST IN TELECOMMUNICATIONS INPHORMATION MODEM <=<<
>>===========================================================<<
>> THE PRIVATE SECTOR BBS ... 300/1200 ...... (201) 366-4431 <<
>> THE PEARLY GATES BBS ..... 300 BAUD ...... (203) 624-4425 <<
>> SHADOWLAND BBS ........... 300 BAUD ...... (303) 939-9614 <<
>> THE DARK FOREST BBS ...... 300/1200 ...... (516) 549-0268 <<
>> THE BROADWAY SHOW BBS .... 300 BAUD ...... (718) 615-0580 <<
>>===========================================================<<
>> ANOTHER TELECOMMUNICATIONS PHILE FROM THE ARCHIVES OF THE <<
>> PRIVATE SECTOR BBS (201) 366-4431, OFFICIAL BOARD OF 2600 <<
>> FOR BEST RESULTS WHEN READING TRY 80 COLUMNS / LOWER CASE <<
>>===========================================================<<
Call The Works BBS - 1600+ Textfiles! - [914]/238-8195 - 300/1200 - Always Open