Telephony Features

● Lighted line keys
● Hold key
● Voicemail key
● Menu key
● Lighted mute key
● Lighted headset key
● Lighted speakerphone key
● Lighted message waiting indicator
● Graphical display
● 5-way navigational buttons
● 4 soft-key buttons
● Network features
● Wi-F
● Wi-Fi security
● Ethernet switc
● Volume control
● Call hold
● Music on hold**
● Call waiting
● Caller ID name and number and outbound caller ID blocking
● Caller ID mapping for incoming calls
● Outbound caller ID blocking
● Call transfer-attended or blind
● Call conferencing-hosted (N-party) or local (3-party)
● Call forwarding-unconditional, no answer, on busy
● Visual voice message waiting indicator (VMWI)
● Shared/bridge line appearance**
● Call pickup-selective and group**
● Call park and unpark**
● Call back on busy
● Call blocking-anonymous and selective
● Do not disturb
● Intercom**
● Group paging**
● Extension mobility**
● Configurable dial/numbering plan support with interdigit timers-per line
● URL (IP) dialing support
● Distinctive ringing based on calling and called number
● Supplementary services feature activation codes
● Supplementary services announcements codes
● Configurable supplementary services soft keys
● Individual volume setting per each audio path (headset/handset/speaker) **Feature requires support by SIP/SPCP client management server
● Smart Phone Control Protocol (SPCP)
● SIP version

 Voice feature

● SIP proxy redundancy-dynamic via DNS SRV, A records
● Reregistration with primary SIP proxy server
● SIP support in network address translation (NAT) networks (including simple traversal [STUN])
● Codec name assignment
● 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 multifrequency (DTMF): in-band and out-of-band (RFC 2833) (SIP INFO)
● Flexible dial plan support with interdigit 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)

Data Features

● 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)
● User Datagram Protocol (UDP) (RFC 768)
● Real Time Protocol (RTP) (RFC 1889, 1890)
● Real Time Control Protocol (RTCP) (RFC 1889)
● Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349)
● VLAN tagging 802.1p/Q
● Simple Network Time Protocol (SNTP) (RFC 2030

Security

● 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
● SSL VPN
● Secure RTP for media encryptio

Provisioning, administration, and maintenance

● Web browser administration and configuration via integrated web server
● Automated provisioning and upgrade via HTTPS, HTTP, or (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 configurabl