Data Sheet
© 2008-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 4 of 6
Specifications*
Data networking
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MAC address (IEEE 802.3)
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IPv4 (RFC 791) upgradable to v6 (RFC 1883)
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Address Resolution Protocol (ARP)
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DNS A record (RFC 1706), SRV record (RFC 2782)
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DHCP client (RFC 2131)
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DHCP server (RFC 2131)
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Point-to-Point Protocol over Ethernet (PPPoE) client (RFC 2516)
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Internet Control Message Protocol (ICMP) (RFC 792)
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TCP (RFC 793)
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UDP (RFC 768)
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RTP (RFC 1889, RFC 1890)
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RTCP (RFC 1889)
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Trivial File Transfer Protocol (TFTP)
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Real Time Streaming Protocol (RTSP)
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HTTP
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NAT (RFC 1631)
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Reverse NAT
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SDP
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Simple Network Time Protocol (SNTP) (RFC 2030)
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ToS (RFC 791, RFC 1349)
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QoS: packet prioritization by type
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Router or bridge mode of operation
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MAC address cloning
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Port forwarding
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IP multicast/IGMP versions 1, 2, and 3/IGMP proxy
Voice features
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Voice algorithms
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G.711 (a-law and µ-law)
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G.726 (16/24/32/40 kbps)
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G.729 AB
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G.723.1 (6.3 kbps, 5.3 kbps)
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Call forwarding: no answer/busy/unconditional
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Support for 2 simultaneous calls
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SIP TLS
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Call transfer
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Call waiting/hold/retrieve
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Three-way conferencing
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Call ID number and name (primary line and on call waiting)
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Call ID block (prevents sending out the caller ID)
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Anonymous call blocking
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Distinctive ringing
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Do not disturb setting
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Repeat dialing on busy
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Call return
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Emergency call support
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Dial plan
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Speed dial
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Auto-attendant
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Multiroom meet-me conference
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In-band/SIP-INFO DTMF translation
Provisioning, administration,
and maintenance
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Web browser administration and configuration via integral web server
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Telephone keypad configuration with interactive voice prompts
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Automated provisioning and upgrade via HTTP, TFTP, HTTPS
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Asynchronous notification of upgrade availability via NOTIFY
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Nonintrusive in-service upgrades
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Report generation and event logging
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Stats in BYE message
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Syslog and debug server records
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Per line and purpose configurable syslog and debug options
