What can I do about collection calls for accounts that aren't mine?

Lately, I have been receiving numerous phone calls to my cell phone on a daily basis from (800) 240-1195. Doing a reverse lookup, I discovered that the number belongs to CBCS, a nation-wide collection agency. Recently, they have started leaving generic voicemails stating that they鈥檙e trying to collect a debt and to give them a call. They don鈥檛 mention my name or what it鈥檚 for. I pulled my three-bureau FICO credit reports last week for an unrelated matter and all of them came out excellent with no notes or comments regarding collections. I鈥檓 in the middle of a dispute with another collection agency for a past-due landline phone bill that never belonged to me at an address I have never lived at. That situation is about to be settled since I provided the proof they need to show it鈥檚 not mine. However, I don鈥檛 want to go through that same process for whoever is calling me now from CBCS. Should I just ignore the calls or actually answer them to find out what the heck is going on?What can I do about collection calls for accounts that aren't mine?
Talk with them and get it straightened out. Otherwise they will continue to call you, that's what they get paid for.