how to run a video camara threw telephone cable over more than 300 ft?

xXxXxXx

New member
OK im trying to put camaras in some apartments close to my house.. The owner wants me to put 4 camaras in each department to watch the streets. He wants me to do it via telephone line. i was able to conect a signal and do most of the work(intersepting and using telephone lines. The only problem that im having is that the signal seem really week. i think i need some kind of amplifier. Its more than 300 feet away each camara. It looks like the signal get lost and the camaras seem really dark and you could berly see anything. What can i do or what kind of amplifier should i need or where i can find it..
 
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