Generic "get in touch" icon

I usually use the phone call icons, or email, sms, and so on.

But in my case we found the need for a generic "get in touch" icon, which will lead to either email, or phonecall, or sms, depending on what is available.

Is there an icon for such a feature? Right now I'm looking at hybrid icons with a phone over an envelope for example, but while that would do the trick, I'm curious if there is anything more to find out here.

Is there an icon that exists for such an action?