Looking for information about PSTN standards

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mehboob_iiui

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where can i get information on pstn standars, I want to know the voltage and current levels when getting dial tone, or a ring, and things like that..
 

Re: PSTN Standars

I could not find it from there, if you have seen such a standard please provide an exact link or a downloadable file. thankyou.
 

Re: PSTN Standars

Hi

ETSI TR 101 183 V1.1.1 (1998-05)
ReferenceTR/ATA-005074 Source:ATA 61155 bytes (18 Pages) Former price code: C
Title: Public Switched Telephone Network (PSTN);Analogue ringing signals
**broken link removed**

and you can find more in this link
**broken link removed**

Salam
Hossam Alzomor
www.i-g.org
 

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