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Note:

• The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
• These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
• These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Data networking

• MAC address (IEEE 802.3)
• IPv4 (RFC 791)
• Address Resolution Protocol (ARP)
• DNS: A record (RFC 1706), SRV record (RFC 2782)
• Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)
• Internet Control Message Protocol (ICMP) (RFC 792)
• TCP (RFC 793)
• User Datagram Protocol UDP (RFC 768)
• Real Time Protocol RTP (RFC 1889, 1890)
• Real Time Control Protocol (RTCP) (RFC 1889)
• Real Time Control Protocol - Extended Report ( RTCP-XR) ( RFC 3611 )
• Differentiated Services (DiffServ) (RFC 2475)
• Type of service (ToS) (RFC 791, 1349)
• VLAN tagging 802.1p/Q: Layer 2 quality of service (QoS)
• Simple Network Time Protocol (SNTP) (RFC 2030)

Voice gateway

• SIP version 2 (RFC 3261, 3262, 3263, 3264)
• SPCP with the Cisco Unified Communications 500 Series
• SIP proxy redundancy: dynamic via DNS SRV, A records
• Re-registration with primary SIP proxy server
• SIP support in NAT networks (including STUN)
• SIPFrag (RFC 3420)
• Highly secure (encrypted) calling via Secure Real-Time Transport Protocol (SRTP)
• SIP/TLS
• Codec name assignment
• Voice algorithms:
• G.711 (A-law and μ-law)
• G.726 (16/24/32/40 kbps)
• G.729 AB
• G.722
• Dynamic payload support
• Adjustable audio frames per packet
• Dual-tone multifrequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO)
• Flexible dial plan support with interdigit timers
• IP address/URI dialing support
• Call progress tone generation
• Jitter buffer: adaptive
• Frame loss concealment
• Voice activity detection (VAD) with silence suppression
• Attenuation/gain adjustments
• Message waiting indicator (MWI) tones
• Voicemail waiting indicator (VMWI), via NOTIFY, SUBSCRIBE
• Caller ID support (name and number)
• Third-party call control (RFC 3725)

Provisioning, administration, and maintenance

• Integrated web server provides web-based administration and configuration
• Telephone keypad configuration via display menu/navigation
• Automated provisioning and upgrade via HTTPS, HTTP, TFTP
• Asynchronous notification of upgrade availability via NOTIFY
• Nonintrusive in-service upgrades
• Report generation and event logging
• Statistics transmitted in BYE message
• RTCP-XR
• Syslog and debug server records: configurable per line

Power supply

• Switching type (100-240V) automatic
• DC input voltage: +5 VDC at 1.0A maximum

Physical interfaces

• Two 10/100BASE-T RJ-45 Ethernet ports (IEEE 802.3)
• Handset: RJ-9 connector
• Built-in speakerphone and microphone
• Headset 2.5-mm port

Indicator lights/LED

• Speakerphone on/off button with LED
• Headset on/off button with LED
• Mute button with LED
• Message waiting indicator LED
• LED test function

Dimensions (W x H x D)

• 8.66 x 7.80. x 1.18 in. (220 x 198 x 30 mm)

Unit weight

• 1.50 lb ( 0.68kg)

Operating temperature

• 32º ~ 113ºF (0º ~ 40ºC)

Storage temperature

• -13º ~ 185ºF (-20º ~ 70ºC)

Operating humidity

• 5% to 95% noncondensing

Storage humidity

• 5% to 95% noncondensing