PIC DTMF Phone Dialer
This project is a dialer box that connects to the phone and can be used to store and dial phone numbers, pins, and credit card numbers. The project uses PIC 16F690 microcontroller and a NTE1690 DTMF dialer chip.
Because this is an IP phone and I cannot just send the DTMF tones over the line, the easiest place to plug in the box is between the phone and the handset. The box has two RJ9 ports at the back – one gets connected to the headset’s port on the phone, the other to the headset itself. The dial tones are sent over the microphone line. This way, it works both on IP-phones, and on standard (old fashioned, non-IP) ones.
DTMF Phone
Schematic and Source code
avtanski.net
Related posts:
- Phone Line controller PIC 16F84A
- Home Automation Using Mobile Phone
- Simple GSM controller
- Interfacing microcontroller avr to GPS mobile phone
- PIC Minimalist Oscilloscope 08M Project
Related Item
Related search terms for the article:
diy ip phone project circuit, dtmf dialer circuit, 8051 based dtmf projects, dtmf phone dialer, dtmf microcontroller projects, nte1690 dtmf, DTMF pic, pic based electronics projects dtmf
diy ip phone project circuit, dtmf dialer circuit, 8051 based dtmf projects, dtmf phone dialer, dtmf microcontroller projects, nte1690 dtmf, DTMF pic, pic based electronics projects dtmf
