Invest in affordable and reliable voice communications with the Cisco IP Phone 7811. It is full-featured, highly secure, easy to use, and offers access to XML and CTI applications. The Cisco IP Phone 7811 is a single-line phone that is optimal for information workers and managers.
Cisco IP Phone 7811 - VoIP phone
Cisco Business Edition 6000
Multiple VoIP protocol support, integrated Ethernet switch