For those who have Siri on their iPhones, is it possible to initiate a call on an iPhone using nothing but Siri? I mean, can you say "Siri, dial such & such number" and the call is placed? Same thing with answering an incoming call - "Siri, answer the call"???

I have a rather serious issue to deal with and need a hands-free phone solution for someone who is fast losing mobility.

If Siri can't do that, then I'd GREATLY appreciate any other ideas or suggestions. Doesn't have to be mobile/cell, but it does have to be something that works in and is available in the U.S., if not mobile then using a landline here.

Thank you.