Gear S2 3g and other brands of phone brands

[xbones84]

So I destroyed my Note 5 and picked up a cheap One M9 from BestBuy. When I place or answer a call on my phone it goes to the watch automatically. It didn't do this on my Note 5. Is there a solution or do I just have to deal with this? It doesn't make a lot of sense to me.

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