When mobile users click a v.ringcentral.com link, it brings them to a landing page where the only option is to download the app (if it is not installed). Many 3rd parties only want to dial-in to the call and don't wish to install the RingCentral app. I'm aware there is a One Tap link on the invitation, but many people don't read through the invitation and just click the v.ringcentral.com link in the location field. Having a link to launch the phone app and dial-in would greatly reduce frustration. This is a feature Zoom has as demonstrated by the below screenshot.