Linksys SPA921 1-line IP phone with 1 Ethernet port and display.
The Linksys SPA921 is a feature-rich, easy-to-use business phone that is fully compatible with existing systems and is reliable to use.
The stylish and functional design of SPA921 allows it to be used in residential, SOHO, enterprise and medium-sized service enterprises, as well as in IP PBX, managed IP telephony and large IP centers.
The Linksys SPA921 comes standard with a pixel-based graphical display, speakerphone, and 2.5mm headset jack. The Linksys SPA921 supports 1 line for two simultaneous calls and features such as 3-way calling, call transfer with alert, and call hold to answer an incoming call. The line can be made either unique with a phone number or extension, or a common number shared between multiple devices.
SIPv2 Protocols
Nutrition
Input: AC 100-240V
Output: DC 5V, 2A
Display Pixel display with backlight: 128x64, graphic, monochrome, liquid crystal
Controls Four programmable keys, 19 buttons, joystick
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
Dimensions 195 x 160 x 180 mm.
Weight 0.9752 kg.
| 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 |
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