[nathan_f77]

I'm also a solo developer, and I take support and sales phone calls for FormAPI [1]. I found a nice number on Twilio: (856) FORM-API

I have a license for on-site deployments, and I think every enterprise inquiry has started with a phone call.

I also send a welcome email to new customers where I say that I'm happy to have a call to talk about their requirements or questions. I also use Drift [2] for live chat, and I've handled a few support cases on there.

My advice: I don't think this is an optional thing. You don't solve the problem by removing the phone number from your site. If you're getting too many calls, you need to improve your self-help support pages, or hire another person to help with the phones.

[1] https://formapi.io

[2] http://drift.com