Data Sheet
© 2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 4 of 6
Feature Benefit
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Voice algorithms:
◦
G.711 (A-law and µ-law)
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G.726 (32 kbps)
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G.729 AB
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G.722, Wideband Audio
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Dynamic payload support
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Adjustable audio frames per packet
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Dual-tone multi-frequency (DTMF): in-band and out-of-band (RFC 2833), SIP INFO (RFC 2976)
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Flexible dial plan support with inter-digit timers
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IP address/Uniform Resource Identifier (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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Voice activity detection (VAD) with silence suppression
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Attenuation/gain adjustments
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VMWI via NOTIFY, SUBSCRIBE
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Caller ID support (name and number)
Data features
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MAC address (IEEE 802.3)
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IPv4 (RFC 791)
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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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Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)
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Point-to-Point Protocol over Ethernet (PPoE) 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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Real Time Protocol (RTP) (RFC 1889, 1890)
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Real Time Control Protocol (RTCP) (RFC 1889), RTCP-XR (RFC 3611)
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Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349)
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VLAN tagging 802.1p/Q
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Simple Network Time Protocol (SNTP) (RFC 2030)
Security
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Password-protected system reset to factory default
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Password-protected administrator and user access authority
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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
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SIP over TLS for signaling encryption
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AnyConnect SSL VPN
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SRTP for media encryption
Provisioning, administration,
and maintenance
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Web browser administration and configuration via integrated web server
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Automated provisioning and upgrade via HTTPS, HTTP, or Trivial File Transfer Protocol (TFTP)
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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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RTP media loopback for quality of service (QoS) monitoring
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Syslog and debug server records - per-line configurable
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