8 OR 12 LINE TELEPHONE INTERCOM

[chandra2sekhar2000]

HELLO
CAN ANY BODY HELP ME IN DOING A 8 0R 12 LINE TELEPHONE INTERCOM USING PICBASIC PRO,PIC 16F877A.PLEASE PROVIDE ME THE CIRCUIT AND LINKS FOR FURTHER INFORMATION.
THANKS IN ADVANCE.

[mitsos]

Hi
you need the "hard to find" crosspoint switches, a good knowledge of telephone operation and signaling and the firmware for the pic maybe is the easier part of this project...
regards
mitsos

[chandra2sekhar2000]

hi mitsos
if u have any information regarding the project?please post it here.
thank u

[pramodjaipur]

hi Chandra,

We worked on 8051 on intercom systems, why you want for pic based project.

regards

[chandra2sekhar2000]

hai pramod
can u share ur circuit please.i will try to change controller.

[pramodjaipur]

Hi,

Why you want to change the controller; it is working fine with 8051.

We are trying to update the whole on ARM 7,

If you have any idea; please suggest.

regards

[vdslnet]

I am too interested to see this project...
-Achira / [email protected]

[ipek]

hi Chandra,
look at another MCU IAR Avr nice proj....
http://www.microsyl.com/intercomm/intercomm.html