Linksys SPA 941 – IP telephone with 2 lines (expandable to 4), one Ethernet port.

The LinkSys SPA941 is a feature-rich, easy-to-use business phone that is fully compatible with existing systems and is reliable to use.
The SPA941 IP phone is ideal for use with VoIP and IP PBX applications and can use either 2 or 4 lines. The phone has a high-resolution graphical pixel display, a speakerphone and a headset jack.
The stylish and functional design of SPA941 allows it to be used in residential buildings, SOHO, organizations and medium-sized service enterprises, as well as in IP-PBX, managed IP telephony and large IP centers.
As standard, the SPA941 has a graphical pixel display, speakerphone, headset jack and supports two active lines.
Each line can be configured with its own SIP account or combined into a common account.
With software upgrade, SPA941 will be able to support up to 4 lines (SPA941UPG).

SIPv2 Protocols
PoE power supply : 5V, 2A
Display Pixel display with backlight: 128x64, graphic, monochrome, liquid crystal
Controls
Four line switching keys
Four programmable keys
Number of lines 2
Codecs
G.723.1 (5.3K/6.3K)
G.729A
G.711 (A-law and μ-law)
G.726 (16/24/32/40 Kbps)
Interface
One RJ-45 10BaseT Ethernet port
2.5mm headset port.

Linksys SPA Series IP Phone Comparison Chart
Linksys SPA Phone Model	Voice Lines	Ethernet Ports	Graphic Display	PoE Support	AC Power Included
Linksys SPA901	1	1	No	No	Yes
Linksys SPA921	1	1	Yes	No	Yes
Linksys SPA922	1	2	Yes	Yes	No
Linksys SPA941	2 - 4	1	Yes	No	Yes
Linksys SPA942	2 - 4	2	Yes	Yes	No
Linksys SPA962	6	2	Yes	Yes	No