Cisco SPA500 Series IP Phones
The Cisco Small Business Pro IP Phones are full-featured VoIP (Voice over Internet Protocol) phones that provide voice communication over an IP network. The phones provide
traditional features, such as call forwarding, redialing, speed dialing, transferring calls, conference calling and accessing voice mail. Calls can be made or received with a handset, headset or over a speaker. IP phones also have special features not available in traditional phones.
The Cisco Small Business Pro IP phones contain Ethernet ports, or ports that allow them to be linked to the computer network. They also have additional Ethernet ports that allow a computer to be connected to the network through the IP phone.
Unlike traditional phones, Cisco Small Business Pro IP phones require a separate power source. You can power the phones by connecting them to a switch that provides Power over Ethernet (PoE), or by using an optional PA100 power adapter.
The following table shows the Cisco Small Business Pro IP Phones and their respective features:
| SPA501G | SPA502G | SPA504G | SPA508G | SPA509G | |
| Screen | Paper labels | 128 X 64 monochrome LCD with backlight | |||
| Lines | 8 | 1 | 4 | 12 | 8 |
| Softkeys | 4 fixed (redial, cancel, conference, and transfer) |
4 dynamic | |||
| Navigation Button | None | Four-way navigation key | |||






