Stylish and functional in design, the SPA941 VoIP Phone is ideal for a residence or business using a
hosted IP telephony service,
an IP PBX, or a large scale IP Centrex deployment. Standard features on the SPA941 include two active lines, a high resolution graphical display, speakerphone, and a 2.5 mm head-set port. With a simple software update, the SPA941 is upgradeable to a four line phone. Each line can be independently configured to use a unique phone number (or extension), or can be configured to use a shared number that is assigned to multiple phones.
The Linksys SPA941 IP telephone can be configured as a two (2) line or, via a simple software upgrade, a four (4) line full featured business phone.
You need to modify only a few parameters from the factory default.
Sample configuration guide.