The method of connecting a telephone line to a crystal head is as follows:

First, you need to prepare some tools and materials, such as telephone lines, crystal heads, crimping pliers, wire strippers, etc.

Then, you need to use a wire stripper to strip about 1.5 cm of the outer skin from one end of the telephone line, exposing two groups of wires, usually red and black and yellow and green.

Next, you need to arrange the two groups of wires in a certain order, and then use the crimping pliers to press the crystal head on the line head, so that each group of wires is inserted into the corresponding slot of the crystal head. The telephone line has no fixed wire sequence, as long as the two ends are consistent. A common wire sequence is red and black in the middle, and yellow and green on both sides.

Finally, it would be best if you used a telephone line tester or a telephone to check whether the telephone line is connected. If you can make and receive calls normally, the telephone line is connected.

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