Descrierea produsului
Nu , Power, Ethernet, Voice Status, Phone 1 through 4, Line 1 through 4 , 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)DHCP server (RFC 2131) , Up to 256-bit Advanced Encryption Standard (AES) encryptionWeb browser administration and configuration via integral web serverTelephone keypad configuration with interactive voice prompts , Ring validation time settingTip/ring voltage adjustment settingRing indication delay settingOperational loop current minimum valueRing time-out settingOn-hook speed settingRinger impedance setting , Automatic PSTN fallback (loss of power or IP service to unit, with quiescence to normal operations): fixed fallback pairing of FXS ports to FXO portsAdvanced inbound and outbound call routing , Supports multiple voice codecs: G. 711a, G. 711u, G. 726, G. 729A, G. 723.1SIP over TLS Three-way conference calling with local mixingPer-call authentication and associated routingCall blocking with toll restriction , SIP channels support both User Datagram Protocol (UDP) and TCP transportVPN pass-through with IP Security encapsulating security payload (IPsec ESP), Point-to-Point Tunneling Protocol (PPTP), and Layer 2 Tunneling Protocol (L2TP) , 150 nF complex impedanceFrequency response 300–3400 HzReturn loss (600 ohm, 300–3400 Hz) up to 20 dBInsertion loss (1 Vrms at 1 kHz) 3–4 dBTotal harmonic distortion (THD) (350 mV peak at 300 Hz) up to 3% , Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)Internet Control Message Protocol (ICMP) (RFC 792)Transport Control Protocol (TCP) (RFC 793)User Datagram Protocol (UDP) (RFC 768) , Automated provisioning and upgrade via HTTPS, HTTP, Trivial File Transfer Protocol (TFTP)Asynchronous notification of upgrade availability via NOTIFYNonintrusive, in-service upgradesReport generation and event logging , Line-in-use voltage settingPassword-protected system reset to factory defaultPassword-protected administrator and user access authorityProvisioning/configuration/auth entication: HTTPS with factory-installed client certificate , Independent configurable dial plans (1 per port)Force PSTN disconnectionPSTN answer delay timerPSTN-to-VoIP call max duration timerVoIP-to PSTN call max duration timerPSTN dialing delay timer , Delayed disconnectDistinctive ringing: calling and called numberOff-hook warning toneSelective/anonymous call rejection VoIP to PSTN (USA) service call origination and termination , SIP version 2Dual-tone multifrequency (DTMF) tone detection and generationVoice Activity Detection (VAD) Comfort Noise Generation (CNG) compatibleSilence suppressionCall waiting, call waiting caller ID (FXS ports only) , Idle channel noise 72 dB (typical)Longitudinal balance 55 dB (typical)Off-hook threshold (line seizure) Rdc1000 ohmOn-hook threshold (line release) Rdc 10000 ohmRdc DC supervisory range Rdc450 ohm , 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 (IEEE 802.1p) , Stats in BYE messageSyslog and debug server recordsPer-line and purpose configurable syslog and debug optionsRing voltage: 40–90 Vpk configurableRing frequency: 20–25 HzRing waveform: trapezoidal , HTTP digest-encrypted authentication via MD5 (RFC 1321)Authentication: Extensible Authentication Protocol TLS (EAP-TLS), EAP Tunneled TLS (EAP-TTLS), and Protected EAP (PEAP)SIP over TLS , VoIP dialog refresh interval timerPSTN ring time-out timerFXO port impedance: configurable to 16 settingsRing frequency: configurableSPA to PSTN and PSTN to SPA gain settingsRing frequency: maximum setting , PSTN (USA) to VoIP service call origination and terminationForward calls to VoIP service: selective, authenticated, allForward calls to PSTN service: selective, authenticated, all , Caller ID with name/ numberCaller ID blockingCall forwarding: no answer, busy, allDo not disturbCall transfer, call return, call back on busyFax: G. 711 pass-through or real-time fax over IP via T. 38 fax relay , Simple Network Time Protocol (SNTP) (RFC 2030) Upload data rate limiting: static and automaticQuality of service (QoS): voice packet prioritization over other packet typesMAC address cloningPort forwarding , Maximum ringer load: 5 ringer equivalence numbers (RENs)On-hook/off-hook characteristics:On-hook voltage (tip/ring): -46 ~ -56VOff-hook current: 18–20 mATerminating impedance: 600 ohm resistive or 270 ohm + 750 ohm , 170 x 39 x 220 mm , Switching type (100–240V) automaticDC input voltage: 12V DC at 3.0A max. Power adapter: 100–240V, 50–60 Hz AC input - spa8800
Denumiri similare la Adapter VOIP Cisco SPA8800: SPA 8800

Prețurile și informațiile de pe paginile noastre sunt furnizate de magazinele partenere și au caracter informativ, unele erori pot apărea. Imaginile produselor au caracter informativ, uneori pot include niște accesorii care nu sunt mereu incluse în pachetul de baza. Informațiile aferente produsului (imagine, descriere, preț) se pot schimba fără notificare prealabilă. nu își asumă responsabilitate pentru eventualele greșeli.