VOIP Sip / Fxo / Fxs / ADSL 2 + Router With 4 Ports Switch (Vk-100vpar)

Detailed Product Description
* Standards : 
(1) IEEE 802.3, IEEE 802.3u 10/100Mbps Ethernet Standard
(2) SIP v1 / v2 
(3) ADSL / ADSL 2 / ADSL 2+ Standard

* Bus Interface : 
(1) 4 of LAN ports
(2) 1 of WAN port
(3) 1 port for Phone
(4) 1 port for PSTN
(5) 1 port for ADSL line

* ADSL/ADSL 2+ Function  : 
(1) Annex A (ADSL over POTS) / Annex B (ADSL over ISDN)
(2) DMT Modulation and Demodulation
(3) Full Rate Adaptive Modem (24Mbps @ Downstream and 2Mbps @ Upstream)
(4) Tone Detection 
(5) Inside Splitter
(6) Works with All Major DSLAM Equipment

* ATM Protocol :
(1) WAN Mode Support : PPPoA (PPP over ATM) and PPPoE (PPP over Ethernet)
(2) LAN Mode Support : Routed / Bridge Ethernet over ATM and Classical Internet Protocol over ATM
(4) Supports ATM SAR (Segmentation and Reassembly) / ATM AALC (Adaption layer type 5)
(5) Supports 15 VCs (Virtual Circuits)

* Bridge Mode :
(1) Supports Ethernet to ADSL self-learning transparent bridging (IEEE 802.1D)
(2) Up to 128 MAC learning addresses

* Router Function :
(1) IP Routing RIP v2, and Static Routing
(2) DNS Proxy, Dynamic DNS, and DMZ
(3) Port Forwarding
(4) DHCP Server and Client
(5) NAT and ICMP

* VoIP Features  : 
(1) VoIP Codec : G.711 @ 64K bit/s (PCM)
(2) VoIP Codec : G.723.1 @ 6.3K / 5.3K bit/s
(3) VoIP Codec : G.726 @ 16K / 24K / 32K / 40K bit/s (ADPCM)
(4) VoIP Codec : G.729A @ 8K bit/s (CS-ACELP), G.729B adds AD and CNG to G.729
(5) Voice Quality : VAD( Voice activity detection) and CNG ( Comfortable noise generator)
(6) Voice Quality : LEC (Line echo canceller), Packet Loss Compensation, and  Adaptive Jitter Buffer

* Call Function  : 
(1) Call Hold, Call Waiting, and Call Forward
(2) Caller ID and 3-Way Conference
 
* DTMF Function :
(1) In-Band / Out-Band DTMF
(2) SIP Info
 
* Phone Function  : 
(1) Volume Adjustment
(2) Speed Dial Key
(3) Phone Book

* Sequrity : 
(1) Status Packet Inspection and Filtering
(2) Disturbance Detection and Protection
(3) PAP (Password Authentication Protocol) and CHAP (Challenge Authentication Protocol)
(4) Password Protected System Management

* HTTP Web-Based Management : 
(1) Firmware upgrade from User Interface
(2) WAN and LAN Connection Statistic
(3) Static Route and Routing Table Configuration
(4) Password Protected Access
(5) System Log
(6) Virtual Circuit Configuration

* Environment : Operating Temp. : 0~55 C degree; Operating Humidity : 10% ~ 90% (Non-condensing)