UrLive

One-click calling, From your webpage, At your URL

Screenshots

Hunter's comment

On UrLive, first you choose your personalized URL
This URL will be your phone number for other people to call you.
When You inform the people about your URL, they will be able to visit your website easily.
No installation, no download is needed.
Anyone will be able to call you via video or instant & audio messaging with a click of a button.

Link

https://url.live/Account/Login?returnUrl=SiteA