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| Model | SPA8000 |
| Ruch sieciowy | MAC address (IEEE 802.3) IPv4 - Internet Protocol v4 (RFC 791) ARP - Address Informacje dodatkowe
Resolution Protocol
DNS - A record (RFC 1706), SRV record (RFC 2782) DHCP Client - Dynamic Host Configuration Protocol (RFC 2131) Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516) TCP - Transmission Informacje dodatkowe
Control Protocol (RFC793)
Internet Control Message Protocol (ICMP) (RFC 792) User Datagram Protocol (UDP) (RFC 768) RTP - Real Time Protocol (RFC 1889) (RFC 1890) RTCP - Real Time Control Protocol (RFC 1889) DiffServ - Informacje dodatkowe
Differentiated Services (RFC 2475)
ToS - Type of Service (RFC 791, 1349) VLAN tagging 802.1p/Q - Layer 2 quality of service (QoS) SNTP - Simple Network Time Protocol (RFC 2030) Upload data rate limiting-static and Informacje dodatkowe
automatic
Quality of service (QoS)-voice packet prioritization over other packet types MAC address cloning Port forwarding Session Initiation Protocol (SIP) channels support both UDP and TCP transport VPN pass-through with IP Informacje dodatkowe
Security encapsulating security payload (IPsec ESP), Point-to-Point Tunneling Protocol (PPTP), and Layer 2 Tunneling Protocol (L2TP) |
| Bramka głosowa | SIP v2 - Session Initiation Protocol version 2 (RFC
Informacje dodatkowe
3261, 3262, 3263, 3264)
SIP proxy redundancy - dynamic via DNS SRV, A records Reregistration with primary SIP proxy Server SIP support in NAT networks (including STUN) Adjustable audio frames per packet DTMF - Dual-tone Informacje dodatkowe
multifrequency, in-band and out-of-band (RFC 2833) (SIP INFO)
Flexible dial plan support with interdigit Times IP address/URI dialing support Call progress tone generation Jitter buffer: Informacje dodatkowe
adaptive
Frame loss concealment Full-duplex audio Echo cancellation (G.165/G.168) Voice activity detection (VAD) with silence suppression Comfort noise generation (CNG) QoS (Ethernet port upstream bandwidth control, physical Informacje dodatkowe
port, MAC address, application)
Attenuation/gain adjustments Flash hook timer Message waiting indicator (MWI) tones Visual message waiting indicator (VMWI) via frequency shift keying Informacje dodatkowe
(FSK)
Polarity control Hook flash event signaling Caller ID generation (name and number)-Bellcore, DTMF, European Telecommunications Standards Institute (ETSI) Music on hold client Streaming audio server-up to 10 sessions Informacje dodatkowe
System dial-on-demand routing (DDR) synchronous dynamic RAM (SDRAM)-16 MB System flash ROM-4 MB |
