Hi, my dad has a cheap/basic (non-bluetooth) Motorola pay-as-you-go cell phone. It does not have a built-in speakerphone option, and both he and my mom would like to hear us kids when we call. He doesn't want to buy a new phone either. His phone has a 2.5mm headset jack on it... so what options does he have to hook some kind of an external speakerphone headset-type-of-thing up to it... what's available out there? Could he just plug in a regular speaker with a 2.5mm connector and continue using the cell phone's microphone... or does it have to be a microphone/speaker combo in order for it to work with his headset port?

I'm not sure if I'm making sense or not, but thanks in advanced!

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