05/31/2018
Types of VoIP PBX Phone Systems: IP PBX
An IP PBX is a completely Internet-based phone service with a PBX that resides on-premises. That may sound like a step back to the traditional PBX phone system and the need for complicated hardware, space, and professional services, but it's not. The IP PBX is simple to set up, monitor and maintain.
The standard PBX was a complicated, bulky box. The IP PBX is much simpler. An IP PBX is typically software and a PCI interface card on a dedicated computer, with a web-based interface for management that can be accessed anywhere there's an Internet connection. External hardware requirements are relatively minimal, such as dedicated PoE (Power over Ethernet) switches to power the IP phones, Ethernet cables to connect the phones to the Ethernet port, and routers.
The IP PBX offers the same flexibility, scalability, and convenience of a hosted VoIP PBX phone system. An IP PBX generally has the same call controls, plus a few additional advantages related to network integration, portability, and facilities management.
• Integrates with the user's computer (click-to-dial, email IDs as caller IDs)
• No phone wires — uses Ethernet cables to connect with the Internet
• IP phones retain the identity of the user (via the configuration) when moved from desk to desk
• Web-based PBX system management
• Voice over WiFi (VoWiFi) phones can be used
• Can use a softphone rather than phone hardware
The IP PBX allows for totally converged voice and data communication over the Internet. That means that everything is sent as data packets over the Internet. It also means that voice calls originate as data packets -- no conversion from analog to digital (using a VoIP adapter) first.
With an IP PBX phone system, the small business phone system becomes completely digital. Callers use IP phones that are connected directly to the VoIP network, and often to their computer. With an IP PBX phone system, traditional phone wiring is redundant.
The initial cost for a pure, 100% digital IP PBX phone system can be a little steeper than using hosted PBX phone services for a small business phone system. The expense of an IP PBX phone system is due primarily to the cost of IP phones. However, over time the cost of an IP PBX business phone system becomes significantly lower than a hosted PBX VoIP phone system. That's because many hosted PBX phone systems charge per user. With an on-site IP PBX, there is no monthly per-seat fee.