Thanks to recent developments in modern web browsers like Chrome and Firefox, you no longer need plugins that can sometimes introduce privacy risks like malware. The telephone number protocol avoids all this when you have a compatible business phone app installed on your computer. Some VoIP phone services require a plugin for click to call functionality, but that is no longer the norm. With Nextiva, you can call people instantly from your contacts in one click, or contact your leads or customers from its CRM software. If you use a different CRM, you might need a third-party plugin for real-time outbound calling. Check with your business phone service provider for more information.