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phone!?

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epilot

Member
Hi there

I want to build a system that could make a dial up connection with another phone or mobile phone at another place when it sense a event..
Can anyone help me with any suggestion or direct me for a useful link?

Thanks
 

akg

New Member
epilot said:
Hi there

I want to build a system that could make a dial up connection with another phone or mobile phone at another place when it sense a event..
Can anyone help me with any suggestion or direct me for a useful link?

Thanks
which part is important to u.. if u just need to make a conn:, ATDT to modem will do, or else u need relays and dtmf encoder ..
 

epilot

Member
[/quote]
which part is important to u.. if u just need to make a conn:, ATDT to modem will do, or else u need relays and dtmf encoder ..[/quote]

well, really my problem is at the Dialing part, i dont know how i can give the numbers to the device and say him redials after an event
the simplest way i know is using from a phone and give it the number and then connect 2 wires to the redial part.... but this is not a normal way and i dont like this idea

thanks
 

akg

New Member
so u need a dialling ckt from scratch.. r u intend to use PC in ur project..

case 1: if u use pc , and just need to dial a number , send atdt# (#is the number) to a modem, it will dial
case 2: ur usig a pc , but with no modem. u need a dmf encoder and a relay to make the off-hook condition(low resistance loop) and then send a seq: of bcd to the encoder from PC to dial.

case 3: u have no pc , no modem.. then u alteast need a micro: to provide timing , so that the digits be synchonously send to the encoder

which part describes ur need best.?
 

epilot

Member
akg said:
so u need a dialling ckt from scratch.. r u intend to use PC in ur project..

case 1: if u use pc , and just need to dial a number , send atdt# (#is the number) to a modem, it will dial
case 2: ur usig a pc , but with no modem. u need a dmf encoder and a relay to make the off-hook condition(low resistance loop) and then send a seq: of bcd to the encoder from PC to dial.

case 3: u have no pc , no modem.. then u alteast need a micro: to provide timing , so that the digits be synchonously send to the encoder

which part describes ur need best.?

"akg"

i have send you a PM
 

Roff

Well-Known Member
ljcox said:
Have you done an internet search for "phone dialler"? (or "phone dialer" since some people mis-spell it)

You could also search this forum. Also try www.discovercircuits.com
Hi Len,

According to renowned spelling experts Trumpet.com :)

"Dialer" is the American spelling, while "dialler" is Australian. Since the Trumpet Winsock was developed by an Australian company, Australian spellings have been used for the interface.


Ron
 
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