» Manufacturer's Description: Affordable VoIP for Small Businesses Bring a graphic dimension to your Internet telephony with Cisco's SPA921's high-resolution display. Formerly part of the Linksys Voice System (LVS), now part of Cisco Small Business IP Phone Series, the SPA921 IP Phone includes a high-resolution display, speakerphone, and a 2.5 mm headset port. The SPA921 supports one line with two call appearances, as well as three-way conferencing, attended call transfer, and call hold. Utilizing its Ethernet port, the line can be configured as a unique phone number or extension, or can be configured to share a number that is assigned to multiple phones. Additional features of the Cisco SPA921 IP Phone include: Easy station moves and shared line appearances across local and geographically dispersed locations Standard encryption protocols to provide secure remote provisioning and unobtrusive in-service software upgrades Detailed performance measurement and troubleshooting