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Aethra, Inc. - NT-IP
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Enhanced ISDN Network Termination Device for Internet Access and Analogue Phones

Model: NT-IP

  • PCM speech coder/decoder, according to G.711, A-law
  • Pulse and/or tone dialing, metering pulse generation
  • One port available in emergency conditions (mains off)
  • Local tone generation (dial tone, congestion and call waiting) is provided when required
  • Register recall or hook-flash keys are also supported to invoke supplementary services
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The NT-IP is a network termination for the ISDN basic rate access, which adds to the features commonly found in a standard ISDN network termination (NT1), two standard telephone ports and an RS232 interface to provide a fully digital, fast and reliable connection to a PPP terminal server, such as Internet Service Provider (ISP), remote access, e-mail access server, etc.

Internet Access and ISDN Telephony Service

Network termination for ISDN basic access with 2 telephone ports and RS232 interface for fast and reliable connection to Internet Service Provider, remote access or e-mail access server.

Customer Equipment Preserved

All the advantages of the ISDN network, without the need to purchase additional equipment, subscribers can keep using standard devices like analogue phones, modems, group 3 fax, automatic answering machines or micro PBX’s.

Always on/Dynamic ISDN

AO/DI allows the user to maintain a continuous connection and to allocate the B-Channels dynamically as actually needed. When a data session is set up on the D-Channel, up to three communications channels are available to the user.

  • PCM speech coder/decoder, according to G.711, A-law
  • Pulse and/or tone dialing, metering pulse generation
  • One port available in emergency conditions (mains off)
  • Local tone generation (dial tone, congestion and call waiting) is provided when required
  • Register recall or hook-flash keys are also supported to invoke supplementary services
  • To allow operation with a wide range of terminal, the NT-IP features high on hook battery voltage and high voltage ringing even on heavy ringer loads (~3 REN’s)
  • PPP asynchronous to synchronous conversion
  • Enhanced AT command set
  • Handling of control signals (DTR, DSR, CTS, etc)
  • Implicit rate adaptation via the HDLC framing
  • Other major features of the RS-232 port
  • Selectable hardware (CTS) or software (Xon, X-off) flow control One directory number (DN) can be allocated for the RS232 port
  • Internet Access on a single B-channel or on both B-channels using the multilink PPP (MP) protocol
  • Always on /Dynamic ISDN (AO/DI)
  • Bandwidth on Demand (BOD)
  • Bandwidth Allocation Protocol and Bandwidth Allocation Control Protocol (BAP/BACP)
  • Peer to peer communication according to ITU-T V.120 or V.110 recommendations
  • Enhanced AT command
  • Automatic bit rate recognition up to 230,4kb/s
 
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