Cisco SPA112

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2 Port Phone Adapter, SPA112 Port Phone Adapter Cisco SPA112 2 x RJ11 spa1122 Port Phone AdapterCaracteristici Port Phone Adapter Cisco SPA112 2 x RJ11 spa112 Tip:Port Phone AdapterCaracteristici speciale:Password-protected administrator and user access authorityUser Datagram Protocol (UDP) (RFC 768)Configuration management: Backup and restoreDynamic payloadLongitudinal balance: 55 dB (typical)Visual messaging waiting indicator (VMWI) using frequency shift keying (FSK)Distinctive ringing: Calling and called numberIPv4 (RFC 791) upgradeable to IPv6 (RFC 1883)Automated provisioning and upgrade using HTTPS, HTTP, and Trivial File Transfer Protocol (TFTP) TR-069Reregistration with primary SIP proxy serverTerminating impedance: 600 ohm resistive or 270 ohm + 750 ohmEcho cancellation (G. 165 and G. 168)Selective and anonymous call rejectionRing indication delay settingHTTPS with factory-installed client certificateReal Time Control Protocol (RTCP) (RFC 1889)Subscriber line interface circuit (SLIC) :Dual-tone multifrequency (DTMF): In-band and out-of-band (RFC 2833) (SIP information)On-hook threshold (line release): Rdc min 10000 ohmHook flash event signalingAdvanced inbound and outbound call routingFax tone detection pass-throughDomain Name System (DNS) A record (RFC 1706) and SRV record (RFC 2782)Nonintrusive, in-service upgradesHighly secure (encrypted) calling using Secure RTP (SRTP)Frequency response: 300-3400 HzSilence suppressionDo not disturb1 WAN 100BASE-T RJ-45 Ethernet Port (IEEE 802.3)Up to 256-bit Advanced Encryption Standard (AES) encryptionSimple Network Time Protocol (SNTP) (RFC 2030)Ring frequency: 20- 25 HzIndependent configurable dial plans with interdigit timers and IP dialing (1 per port)Streaming audio server: Up to 10 sessionsLong silence (configurable time setting) silence thresholdReal-time fax over IP using T. 38 fax relay (T. 38 support is dependent on fax machine and network and transport resilience)Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)Statistics in Bye messageG. 711 (A-law and μ-law)Insertion loss (1 Vrms at 1 kHz): 3-4 dBAttenuation and gain adjustmentsThree-way conference calling with local mixingReset buttonProvisioning, administration, and maintenance :Voice gateway :Maximum ringer load: 5 ringer equivalence numbers (RENs)Jitter buffer: AdaptiveCall waiting, call waiting and caller IDConfigurable ring frequencyPassword-protected system reset to factory defaultTCP (RFC 793)Ping and traceroute diagnosticsG. 729 AIdle channel noise: 72 dB (typical)Message waiting indicator (MWI) tonesCall blocking with toll restrictionMAC address (IEEE 802.3)Telephone keypad configuration with interactive voice promptsSIP proxy redundancy: Dynamic through use of DNS SRV A recordsOff-hook current: 18-25 mAFull-duplex audioCaller ID blockingTip and ring voltage adjustment settingProvisioning, configuration, and authenticationReal Time Protocol (RTP) (RFC 1889) (RFC 1890)Support for BonjourAdjustable audio frames per packetOff-hook threshold (line seizure): Rdc max 1000 ohmPolarity controlOff-hook warning toneFax capability :Address Resolution Protocol (ARP)Asynchronous notification of upgrade availability using NotifySIP support in network address translation (NAT) networks (including Serial Tunnel [STUN])150 nF complex impedanceVoice activity detection (VAD)Call forwarding: No answer, busy, and allPhysical interfaces :HTTP digest: Encrypted authentication using MD5 (RFC 1321)VLAN tagging (IEEE 802.1p)Ring voltage: 40-90 Vpk configurableVoice features :Rdc DC supervisory range: Rdc max 450 ohmCaller ID generation (name and number): Bellcore, DTMF, and European Telecommunications Standards Institute (ETSI)Hotline and warmline callingFax pass-through using G. 711Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)Report generation and event loggingCodec name assignmentReturn loss (600 ohm, 300-3400 Hz): up to 20 dBComfort noise generation (CNG)Call transfer, call return, and call back on busy2 RJ-11 FXS phone ports for analog circuit telephone device (tip and ring)SIP Transport Layer Security (TLS)SIP channels support for both UDP and TCP transportRing waveform: trapezoidalCall progress tone generationMusic on holdDisconnect tone (for example, reorder tone)Security :Internet Control Message Protocol (ICMP) (RFC 792)Debug server records and syslog: Per-line configurable web browserG. 726 (32 kbps)Total harmonic distortion (THD) (350 mV peak at 300 Hz): up to 3%Flash hook timerPer-call authentication and associated routingData networking :Web browser administration and configuration using integral web serverSIPv2 (RFC 3261, 3262, 3263, and 3264)On-hook voltage (tip and ring): -46 to -56VFrame loss concealmentCaller ID with name and numberRing validation time settingDimensiune:101 x 101 x 28 mmGreutate (g):153 g
Denumiri similare la Adapter VOIP Cisco SPA112: SPA 112

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