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Linksys IP Phone Administrator Guide
Firmware Version 5.1
Chapter 2 Getting Started
Linksys 900 Series IP Phones
• Built-In High Quality Microphone and Speaker
• Headset Jack – 2.5 millimeter
• Two Ethernet LAN ports (100BaseT RJ-45)
• 802.3af Compliant Power over Ethernet (PoE) (not available on SPA9x1 models)
• Optional 5 volt DC Universal (100-240 Volt) Switching Power Adaptor - Power Supply is Ordered
Separately
SPA921
The SPA921 has one RJ-11 phone port and one 100BaseT RJ-45 port for connecting the phone to the
LAN (see Figure 2-2).
Figure 2-2 SPA921
The following tables describe the status indicators and controls on the front of the device and
the ports on the back panel of the device.
Front Panel
Feature Function
LCD display Lists device status and configuration options.
Telephone keypad Enters numeric digits for initiating a call or for entering
configuration information.
Navigation button Scrolls between display and configuration options in the LCD
display.
Soft keys 1-4 Selects options on the LCD display