There are four types of VoIP phone systems to consider for your business: Cloud-based VoIP phone system (Unified Communications) Virtual phone systems (Call forwarding) Private branch exchange (SIP trunking) Traditional phone system (Analog phone lines) With a phone system hosted in the cloud, you never have to worry about technical setup, costly routers, or ever outgrowing it. With VoIP, there’s limitless customization available — from the apps to the hardware to the customer experience. Whether you work from Microsoft Outlook or Salesforce CRM, you can place voice calls on your terms with cloud VoIP technology. Nextiva provides a full-featured VoIP phone system alongside its productivity software, call center, and SIP trunking products.