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 The SmartNode 4554 ISDN VoIP gateway enables any IP PBX to make calls to the ISDN PSTN. The compact, reliable stand-alone design allows enterprises to easily integrate BRI lines into their VoIP system.
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 Optimized for secure, IPsec-encrypted voice-and-data processing, the SmartNode 4562 voice-over-VPN router for ISDN users delivers cost-saving, revenue-generating VoIP to carriers and enterprises.
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 The award-winning SmartNode 4630, with up to 5 BRI ports and 8 simultaneous voice channels, is the best way to connect ISDN networks to the world of voice over IP.
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 The SmartNode 4650 ADSL ISDN VoIP IAD, with up to 5 BRI ports and 8 simultaneous voice channels, is the best way to connect ISDN networks to the world of voice over IP.
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 The award-winning SmartNode 4960 Multi-Port T1/E1 VoIP Integrated Access Device integrates with legacy telephony gear to deliver VoIP and data services with QoS and encrypted-voice VPNs.
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 A new member of the award-winning SmartNode 4960 gateway family, the SmartNode™ 4961 High-Precision Multi-Port T1/E1 VoIP IAD combines power and flexibility.
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 The SmartNode™ 4552 is the single-box CPE solution for integrating data access with voice & fax over any broadband access network. Combining two simultaneous voice/fax gateway calls with a feature rich broadband QoS IP Router.
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 The SmartNode 4650 Multiport ISDN VoIP IAD with G.SHDSL.bis Interface, equipped up to 5 BRI ports and 8 simultaneous voice channels, is the best way to connect ISDN networks to the world of voice over IP.
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 The S-DTA brings all advantages of VoIP to ISDN users. It connects multiple terminals or a PBX to its BRI So bus, and converts 2 concurrent voice or fax calls to SIP or H.323—at an incredibly low price.
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