Web callback
Web callback is a technology where a person can enter his or her telephone number in a form on a web site. The company who owns that Web site will then receive the Web callback request and a call center agent will call the person who made the request back on the number they entered.
In some implementations, the Web callback service provider will place outgoing calls to the owner of the web site, and the user, then connect the calls together. An alternative approach is for the web site owner to receive a SMS text message, so they can initiate the call to the web site user.
Some Web callback service providers allow the callback form to be embedded into the web site, sometimes matching the look and feel of the existing site. Others simply add a hyperlink to the site, which is linked to the service providers own site.