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Author Topic: Vintage Ring Back  (Read 1560 times)

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Offline Southernphonemans Telecom

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    • Southernphonemans Telecom
Vintage Ring Back
« on: September 23, 2021, 05:13:35 PM »
I was wondering if anyone knows what the frequency numbers are for the "old city ring back" from the 70s
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Offline NTlayoff

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  • Location: Columbus, Ohio
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    • CMH Telecom, Ltd.
Re: Vintage Ring Back
« Reply #1 on: September 23, 2021, 08:47:55 PM »
I do not know if this is THE answer you want - but it is A answer.

From Wikipedia, the free encyclopedia:
In North America (excluding Mexico, Central America and parts of the Caribbean), the standard audible ringing tone (also ringback tone) is a repeated cadence of a two-second tone and four seconds of silence. The signal is composed of the frequencies 440 Hz and 480 Hz.
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Offline Southernphonemans Telecom

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    • Southernphonemans Telecom
Re: Vintage Ring Back
« Reply #2 on: October 10, 2021, 02:21:44 PM »
Thank you sir for answer and am sorry it took so long to respond.
Serving Pamlico, Craven, and Cartaret Counties in Eastern North Carolina
https://sites.google.com/site/southernphonemanstelecom/
https://sites.google.com/view/centralofficetelnet/
Central Office Telnet 745-7807