Orelhão VOIP Pré-pago

Sistema de telefonia similar ao "ORELHÃO" do brasil, podendo usar cartão ou moeda como forma de pagamento.

Specifications:

1). Integrate two ports router function, support bridge mode and router mode
2). Support basic NAT and NAPT
3). Support PPPoE for xDSL, auto redial when disconnect
4). Support DHCP client at WAN port
5). Support DHCP server at LAN port
6). Support DNS relay for LAN, can provide DNS service for LAN Network equipment Support several network tools: Ping, trace route and telnet client
7). Have three modes of WAN port IP configuration: Static, DHCP, and PPPoE
8). Provide firewall control for small LAN
9). Provide optional priority level for small LAN
10).Support secondly layer QoS(802.1p) 

1) Have three numbers in one phone: 2 VOIP number and 1 PSTN number
2) Switch freely between VOIP and PSTN
3) Use advanced DSP tech to insure high quality voice
4) Use advanced jitter buffer tech to reduce data package delay and lost
5) Support VAD (Voice Activity Detection), CNG (Comfort Noise Generation) and silence suppression
6) Support AGC (Automatic Gain Control) and input/output voice volume adjustment
7) Support call waiting, call holding, call transfer, 3-way calling and many modes of call forward
8) Setup limit number or forbid call out
9) Support point-to-point call
10) Support hotline function (off-hook auto dialing )
11) Setup dialing number ending mode
12) Support many countries' standard ring

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