@JTT,
I'm not sure what you're trying to accomplish.
Are you setting up a traditional phone system, a computer network, a voice-over-IP phone system, or some hybrid?
Generally, any kind of network running off of CAT5 (or 6, now) wire is run in a star topology, where you run one cable to each device.
You can also place a switch or hub at the end of one of these cables, if you need to uplink multiple devices.
Depending on what equipment you're trying to attach, wireless may not be the best choice. Wireless a poor medium for voice traffic, for example, because it can only send or receive; it cannot do both simultaneously. Wireless is also vulnerable to interference.