User manual

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5
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5520
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¾ Power: Output Power: 12VDC, 500mA DC
¾ WAN: RJ45 port
¾ LAN: RJ45 port
¾ Extended interface for BLF module: 2
¾ Headset jack : RJ9 port
¾ Handset jack : RJ9 port
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¾ LCD: 128×64 dot matrix
¾ FLASH: 4M
¾ RAM: 16×16M
¾ LED indicator ： 1 Status Light , 9 BLF indicator, 1 voicemail indicator, 1
headset indicator, 1 mute indicator, 1 handfree indicator