Cisco IP Telephone w/ Switch SPA942-RC Ficha De Dados
Códigos do produto
SPA942-RC
Data Sheet
© 2008-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Voice
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SIP version 2 (RFC 3261, 3262, 3263, 3264)
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SIP proxy redundancy - dynamic via DNS SRV, A records
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Re-registration with primary SIP proxy server
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SIP support in NAT networks - NAT (including serial tunnel [STUN])
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SIPFrag (RFC 3420)
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Secure (encrypted) calling via SRTP (RFC 3711)
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Codec name assignment
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Voice algorithms: G.711 (A-law and
µ
-law), G.726 (16/24/32/40 kbps), G.729 A, G.723.1 (6.3 kbps, 5.3 kbps)
●
Dynamic payload support
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Adjustable audio frames per packet
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Dual-tone multifrequency (DTMF) - in-band and out-of-band (RFC 2833) (SIP INFO)
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Flexible dial plan support interdigit timers
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IP address/URI dialing support
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Call progress tone generation
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Jitter buffer - adaptive
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Frame loss concealment
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VAD - voice activity detection with silence suppression
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Attenuation/gain adjustments
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MWI - message waiting indicator tones
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VMWI - voicemail waiting indicator - via NOTIFY, SUBSCRIBE
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Caller ID support (name and number)
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Third-party call control (RFC 3725)
Security
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Password-protected system, preset to factory default
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Password-protected access to administrator and user-level features
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HTTPS with factory-installed client certificate
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HTTP digest - encrypted authentication via MD5 (RFC 1321)
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Up to 256-bit Advanced Encryption Standard (AES) encryption
Environmental
Dimensions
W x H x D
7.68 x 6.3 x 7.09 in.
(195 x 160 x 180 mm)
Weight
2.15 lb (0.9752 kg)
Power
●
DC input voltage: +5V DC at 2.0A maximum
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Power consumption: 5W
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Switching type (100-240V) automatic
●
Optional power adapter (Cisco PA100 Power Supply for Small Business VOIP): 100-
240V 50-60 Hz (26-34VA) AC input
Certification
FCC (Part 15, Class B), CE, A-Tick, ICES-003
Operating temperature
32° to 113°F (0° to 45°C)
Storage temperature
-13° to 185°F (-25° to 85°C)
Operating humidity
10% to 90%, noncondensing
Storage humidity
10% to 90%, noncondensing
Package Contents
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Cisco SPA942 4-Line IP Phone with 2-Port Switch
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Handset cord
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RJ-45 Ethernet cable
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Quick installation guide
(Optional power supply is ordered separately)
Documentation
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Installation and configuration guide
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User guide
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Administration guide
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Provisioning guide - for service providers only