Cisco IP Telephone w/ Switch SPA942-RC 데이터 시트
제품 코드
SPA942-RC
Data Sheet
© 2008-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Table 1.
Specifications for the Cisco SPA942 4-Line IP Phone with 2-Port Switch
Specifications
Hardware
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Pixel-based display - 128 x 64 monochrome graphical liquid crystal display (LCD)
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Four illuminated call appearance line buttons with tricolor LEDs
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LED indicates line state - active, idle, on hold, unregistered
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Line LED configurable to 13 different states (on/off, color, flash)
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Dedicated illuminated on/off buttons for audio mute, headset, and speakerphone
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4 soft-key buttons
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4-way rocking directional button for menu navigation
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Voicemail message waiting indicator light
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Voicemail message retrieval button
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Dedicated hold button
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Settings button for access to feature, setup, and configuration menus
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Volume control rocking up/down button controls handset, headset, speaker, ringer
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Standard 12-button dialing pad
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High-quality handset (RJ-7 connector) and cradle
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Built-in high-quality microphone and full-duplex speakerphone
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Headset jack - 2.5-mm port
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LED test function
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Two Ethernet LAN ports with integrated Ethernet Switch - 100BASE-T, RJ-45
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802.3af compliant PoE
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Optional 5V DC universal (100-240V) switching (power supply is ordered separately)
Data Networking
MAC address
IEEE 802.3
IPv4
IPv4 (RFC 791)
ARP
Address Resolution Protocol
DNS
A record (RFC 1706), SRV record (RFC 2782)
DHCP
Dynamic Host Configuration Protocol (RFC 2131)
ICMP
Internet Control Message Protocol (RFC 792)
TCP
Transmission Control Protocol (RFC 793)
UDP
User Datagram Protocol (RFC 768)
RTP
Real Time Protocol (RFC 1889) (RFC 1890)
RTCP
Real Time Control Protocol (RFC 1889)
DiffServ
Differentiated Services (RFC 2475)
Type of service (ToS)
RFC 791/1349
VLAN tagging 802.1p/Q
Layer 2 QoS
SNTP
Simple Network Time Protocol (RFC 2030)