Cisco Small Business SPA525G2 Datasheet page 4

Feature
Data features
Security
Provisioning, administration,
and maintenance
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Benefit
● Voice algorithms:
G.711 (A-law and µ-law)
◦
G.726 (32 kbps)
◦
G.729 AB
◦
G.722, Wideband Audio
◦
● Dynamic payload support
● Adjustable audio frames per packet
● Dual-tone multi-frequency (DTMF): in-band and out-of-band (RFC 2833), SIP INFO (RFC 2976)
● Flexible dial plan support with inter-digit timers
● IP address/Uniform Resource Identifier (URI) dialing support
● Call progress tone generation
● Jitter buffer - adaptive
● Frame loss concealment
● Voice activity detection (VAD) with silence suppression
● Attenuation/gain adjustments
● VMWI via NOTIFY, SUBSCRIBE
● Caller ID support (name and number)
● 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)
● Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)
● Internet Control Message Protocol (ICMP) (RFC 792)
● TCP (RFC 793)
● UDP (RFC 768)
● Real Time Protocol (RTP) (RFC 1889, 1890)
● Real Time Control Protocol (RTCP) (RFC 1889), RTCP-XR (RFC 3611)
● Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349)
● VLAN tagging 802.1p/Q
● Simple Network Time Protocol (SNTP) (RFC 2030)
● Password-protected system reset to factory default
● Password-protected administrator and user access authority
● HTTPS with factory-installed client certificate
● HTTP digest - encrypted authentication via MD5 (RFC 1321)
● Up to 256-bit Advanced Encryption Standard (AES) encryption
● SIP over TLS for signaling encryption
● AnyConnect SSL VPN
● SRTP for media encryption
● Web browser administration and configuration via integrated web server
● Automated provisioning and upgrade via HTTPS, HTTP, or Trivial File Transfer Protocol (TFTP)
● Asynchronous notification of upgrade availability via NOTIFY
● Nonintrusive, in-service upgrades
● Report generation and event logging
● Stats in BYE message
● RTP media loopback for quality of service (QoS) monitoring
● Syslog and debug server records - per-line configurable
Data Sheet
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