Regarding LAND Line Telephone circuit

Status
Not open for further replies.

prabhukaran3

Member level 5
Joined
Mar 14, 2013
Messages
93
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Location
Karur
Visit site
Activity points
2,053
Dear Friends!
Greetings to all. I am going to design one project using Land line telephone(Security Purpose)

1. I have oral idea about telephone that how telephones are working and basic ideas to send Voice signals. I want to use both pulse dialing mode and Tone dialing mode. However i want to get clear circuit for my project. I have lots of questions to clarify

In Pulse dialing Mode
How can i send mobile numbers to PO.Either both the lines should be shorted are both the telephone wires should be terminated. I googled about this, but answer is need to short. If we short two lines means by chance wire will fired.

Need proper ideas and proper design,, kindly help me

Without Isolation transfo:lol:rmer can i design


Thanks in advance
Happy weekend guys
 

Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…