That's right. The tel protocol is described in RFC 2806, which was written in 2000, although the proposal to make it an Internet Standard did not succeed.[1] It

That's right. The tel protocol is described in RFC 2806, which was written in 2000, although the proposal to make it an Internet Standard did not succeed.[1] It is certainly not a proprietary Google Chrome feature. It may be referring instead to the Chrome feature that allows users to open tel links using their phone (from their desktop).[2] 1. https://www.ietf.org/rfc/rfc2806.txt https://www.ietf.org/rfc/rfc2806.txt 2. https://www.androidpolice.com/2019/11/05/chrome-beta-78-desktop-phone-numbers/ https://www.androidpolice.com/2019/11/05/chrome-beta-78-desk...