1-
2- (#)
3-
4-
5-

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---------------------------------


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-------------------------------



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-------------------


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: :
----------------------------------
2



:
-------------------





(mt 8870 ) ( binary number)




:
-----------------


-------------------------------------


80 120

2 220 6 ( 120 120 6 ) 220 6
6 (6 ) 120 ( 120 )




1-
2-
3-

(pic 16f877a) (A B C D E )

33




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(led)

(led)



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------------------------



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-------------------------
[
url=http://upload.qariya.info/images/qariya-5abefe55bd.jpg]
[/url]
-----------------------

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--------------------------------------------------------------------------------

Ntc
nee to connection

Tt1

Test telephone 1

1
Rt1
ring telephone 1

(x1)

Ct1
Connect to telephon1
4066
In ex
Internal line or external line

Tone

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---------------------------------------------------------------------------------
pic16f877a

http://upload.qariya.info/images/qariya-e4a2854719.jpg

.hex pic microcontroler
http://www.4shared.com/file/24633383...hex_files.html

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--------------------------------
http://upload.qariya.info/images/qariya-982ce8f72f.gif
------------------------------------------

------------------------

1 -
2- A (4066) 4066
# 0 PIC 16F877A


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