Cisco Cisco 4 Line IP Phone with Display, PoE and Gigabit PC Port SPA514G

Caracteristici: Dynamic payload support? Adjustable audio frames per packet? DTMF - Dual-tone multifrequency, 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 Voice gateway :? SIP v2 - Session Initiation Protocol version 2 (RFC 3261, 3262, 3263, 3264)? SPCP - Smart Phone Control Protocol with UC500 ? Nonintrusive in-service upgrades? Report generation and event logging? Statistics transmitted in BYE message? Debug and syslog server records: configurable per line ? SIPFrag (RFC 3420)? Secure (encrypted) calling via SRTP? Codec name assignment Provisioning, administration, and maintenance:? Integrated web server provides web-based administration and configuration? Telephone keypad configuration via display menu/navigation ? RTCP - Real Time Control Protocol (RFC 1889)? DiffServ - Differentiated Services (RFC 2475)? ToS - Type of Service(RFC 791, 1349) ? TCP - Transmission Control Protocol (RFC793)? UDP - User Datagram Protocol (RFC 768)? RTP - Real Time Protocol (RFC 1889) (RFC 1890) ? Frame loss concealment? VAD - Voice activity detection with silence suppression? Attenuation/gain adjustments Data networking : ? MAC address (IEEE 802.3)? IPv4 - Internet Protocol v4 (RFC 791)? ARP - Address Resolution Protocol ? SIP proxy redundancy - dynamic via DNS SRV, A records? Reregistration with primary SIP proxy server? SIP support in NAT networks (including STUN) ? Automated provisioning and upgrade via HTTPS, HTTP, TFTP? TR-69, TR-104, and TR-111 Provisioning? Asynchronous notification of upgrade availability via NOTIFY ? VLAN tagging 802.1p/Q - Layer 2 quality of service (QoS)? SNTP - Simple Network Time Protocol (RFC 2030) ? Voice algorithms:G.711 (A-law and ?-law)G.726 (16/24/32/40 kbps)G.729 AG.722 ? MWI - Message waiting indicator tones? VMWI - Voicemail waiting indicator, via NOTIFY, SUBSCRIBE? Caller ID support (name and number)? Third-party call control (RFC 3725) ? DNS - A record (RFC 1706), SRV record (RFC 2782)? DHCP Client - Dynamic Host Configuration Protocol (RFC 2131)? ICMP - Internet Control Message Protocol (RFC 792) Altele: Physical interfaces : ? Two 10/100/1000BASE-T RJ-45 Ethernet ports (IEEE 802.3) ? Handset: RJ-9 connector ? Built-in speakerphone and microphone ? Headset 2.5-mm port
Model: SPA514G
Tip produs: Telefon
Culoare: Negru
Porturi: 2 x RJ-45, 1 x RJ 9, jack in, microfon
Dimensiuni: 214 x 212 x 44 mm
Greutate: 1.1 kg