Cisco IP Phone 7821 - VoIP phone - SIP, SRTP - 2 lines
The IP Phone 7821 delivers easy-to-use, highly secure, and highly cost-effective voice communications for small to large businesses. It is available on-premises and hosted from Cisco and on third-party hosted call control platforms. The 7821 is a two-line endpoint that is ideal for occasional-to-light voice communications needs of knowledge workers and managers.
Cisco IP Phone 7821 - VoIP phone
Cisco Business Edition 6000
Multiple VoIP protocol support, integrated Ethernet switch