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- Dual Station VoIP, port , FXS , Technology Sip/H.323
- NAT , DoS , SPI , firewall Policy-based DMZ

- Remote administrator authentication IP Sharing
- Voice codec support, Echo cancellation
- Auto switch between Fax and voice Facsimile protocol
- Real-time fax over IP PPPoE / DHCP / DDNS
- Comfort Noise Generation & Voice Activity Detection
 

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2-Port H.323 / SIP VoIP GSM Gateway

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    VIP-281FS

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2-Port FXS H.323 / SIP VoIP Gateway
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    VIP-480

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4-Port H.323 / SIP VoIP Gateway

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