Although wireless cell phones are the most common form of telephones, you can still service and obtain land-line telephones for business or home use. The small speaker on a telephone can often be hard to hear with, in which case you may want to think about connecting the telephone to a sound system. Doing so allows you to hear the incoming dialog through the speakers of the system.
Instructions
1. Plug the 2.5mm jack to RCA adapter into the headset jack on the side of the phone. The 2.5mm jack is slightly smaller than a headphones jack, while the RCA end of the adapter has two ports: one red and one white. You can purchase such an adapter at most electronic stores.
2. Plug the red and white RCA cables into the red and white RCA ports on the adapter. Connect the other ends of the cables into the "Audio In" ports on the back of the sound system.
3. Power on the sound system and press the "Aux" button. This adjusts the playback to the content being imported from the RCA cables.
4. Dial your phone call, but don't stand directly next to the sound system. Doing so can result in feedback and distortion over the land line.
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