circuit diagram for telephone voice changer and also the full material about the connections and procedure ....etc

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To get full information or details of telephone directory management system please have a look on the pages

http://edutwint-telephone-directory-management

http://seminarsprojects.net/Thread-BSNL-TELEPHONE-DIRECTORY-SYSTEM?pid=82301

if you again feel trouble on telephone directory management system please reply in that page and ask specific fields in telephone directory management system ....etc

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Telephone exchange

Historic perspective
Tivadar Pusk s, inventor of the telephone exchange.
Exchange in Miskolc, Hungary
Prior to the telephone, electrical switches were used to switch telegraph lines. One of the first people to build a telephone exchange was Hungarian Tivadar Pusk s in 1877 while he was working for Thomas Edison. George W. Coy designed and built the first commercial telephone exchange which opened in New Haven, Connecticut in January, 1878. The switchboard was built from carriage bolts, ....etc

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To get full information or details of Ip Based on Telephone Exchange please have a look on the pages

http://seminarsprojects.net/Thread-telephone-exchange

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My name is Viktor but I go by the username of el-kones,I am a final year student of Computer science(Information system) in babcock university,located in Nigeria.I will like to do a project based on the topic above and will be happy to get any assistance available.And once the project is identified will make sure all who contributed to the design is recognized and all respect paid.Please note that all contributions towards the project should be based on the software being a standalone software.Also,advice,criticism, etc are welcomed starting fr ....etc

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to get information about the topic telephone call recorder full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-telephone-call-recorder

http://seminarsprojects.net/Thread-telephone-call-recorder?pid=64375&mode=threaded

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TELEPHONE EXCHANGE



A Simple Telephone

Surprisingly, a telephone is one of the simplest devices you have in your house. It is so simple because the telephone connection to your house has not changed in nearly a century. If you have an antique phone from the 1920s, you could connect it to the wall jack in your house and it would work fine!
The very simplest working telephone would look like this inside:

power supply:

-48 V dc is used in telephone exchange:-[/b ....etc

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i want to mss , mrs tas $ac plant ppt.so you should give me a ppt in short in time to make the ppt carefully. ....etc

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i want a ppt n pdf on telephone exchange,MSS and TAS. ....etc

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To get full information or details of telephone exchange office please have a look on the pages

http://seminarsprojects.net/Thread-telephone-exchange?pid=66992&mode=linear

if you again feel trouble on telephone exchange office please reply in that page and ask specific fields in telephone exchange office ....etc

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