Ask them for permission to record the call.
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In some states, Texas being one of them, YOU DO NOT HAVE TO ASK PERMISSION. As long as one of the two parties on the line, know the call is being recorded, it is legal. You cannot record a phone call (with a hidden recording device) between to parties who are talking, and you are not one of the two parties. But, if you are one of the two parties in the conversation, you don’t have to even tell them it’s being recorded. That’s Texas. You might want to check your State Law regarding recording phone conversations.
D.C. isn’t located in Texas, but thanks for the info.
BTW, papa, I'm inordinately aware of the law in this regard and due to where the call was placed, it's exactly why I did what I did and suggested others do the same for their own protection.
You can read up here.
http://www.rcfp.org/can-we-tape/california