how do I crimp an RJ11 cable

Crimping Tool - I've seen the tool packaged with phone line kits available from Meijer and numerous othe retailers - Radio Shack may be a good bet.

The only way is to use a crimp tool. Buy one on-line or a t radio Shack (~$15.00).

Crimp tool. Just be sure you have an RJ-11 tool, not an RJ-45 tool.

Radio Shack, K-Mart, Home Depot, etc.

How many do you have to do? You can get a cheap set from Radio Shack and it'll do a good job for about 8-10 connectors.
Get one with a metal body that will also do RJ-45 (LAN) connectors and you'll be better off. Graybar, Jensen, Technitools all have the less expensive tools and it'll last a lifetime for a casual user. You can get these for about $30-$45.

Radio Shack and Ace Hardware have flyers(free) that tell how to do phone lines complete with pictures.

Phone cable pair/line 1 isred & green, pair/line 2 is black and yellow.

Pair 1 goes in the middle 2 connections. Pair 2 goes in the connections to the right and left of pair 1.

Note that RJ-12 connectors have 6 connections, RJ-45 has 8. RJ-11 & RJ-12 connectors are the same physical size and are interchangeable. RJ-11/12 connectors will fit in an RJ-45 plug AND RJ-11 connectors are wired the same (Pair 1 is pair 1, pair 2 is pair 2).

Take about 4 inches off of the outer insulation off the cable. Check the wires and make sure that you didn't knick/cut the inner wires (You'll short out your phone line if you're not lucky).

Put the wires in the proper order black red green yellow. Trim the wires to 1/4". Insert into connector making sure you keep pressure on the wires so they don't move around.

Keep a constant pressure, insert the connector into the crimper. Squeeze the crimper twice. I've found that sometimes the crimpers don't make a good connection unless you do it twice. Especially the cheap ones.

Good luck.

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