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VoiceXtender

VoiceXtender

The VoiceXtender allows simple telephones located at remote sites to be connected through the LAN/WAN computer network to a telephone system at the main site. Alternatively it can be used for point-to-point or hot wire working.

Features & Benefits

  • VoiceXtender gives free telephone conversations between sites with an existing inter-site computer network
  • Rapid payback on investment
  • High quality industry standard H323 voice
  • Simple installation of single desktop unit at each location
  • Easy to configure
  • Roli and Rilo ports available (FXO, FXS)
  • Telephone numbers fully programmable
  • Only simple DTMF telephones required

Applications

  • ISP/TSP
  • Multi-national enterprise communications
  • SOHO telephony
  • IP-PBX with office telephony services
  • Telephone/PBX call via network
  • FoIP (Fax over IP) device

VoiceXtender Dual Port – Specifications

Interfaces
  • Two 10/100 BaseT Ethernet RJ45 ports
  • One DB9 RS232 COM port
  • Two RJ11 Telephone ports
  • DC 12V input (Mains adaptor supplied)
Features
  • ITU-T H.323 V3 / SIP (RFC 3261)
  • Alternate gatekeeper selection
  • Provide peer to peer mode (no gatekeeper needed) selection
  • Line polarity reversal generation
  • Provide call progress tone
  • PPPoE (option)
  • Behind NAT router or IP sharing device
  • E.164 Dial Plan
  • STMF detection/generation
  • TFTP/FTP software upgrade
  • Remote configuration/reset
  • LED indication for system status
  • MS Netmeeting V3.0 compatible
  • Support Fix IP and DCHP
  • Support QoS by setting TOS (type of service) parameters of VoIP packet
Audio Features
  • Codec – G.711 A/u-Law, G.723.1, G.729A, G.729
  • VAD (Voice Activity Detection), CNG (Comfort Noise Generation)
  • G.168/165-compliant adaptive echo cancellation
  • Dynamic Jitter Buffer
  • Bad Frame Interpolation
  • Completed voice band signaling support
  • Provide inband or outband DTMF generation/detection
  • Provide H.450 services (Hold, Transfer, Forward)
  • Gain/Attenuation Settings
  • Provide progress Tone: Dial tone, Busy tone, Call-holding tone, 2 nd dial tone and Ring back tone
FAX Support
  • Automatic FAX detection
  • Group 3 Fax relay at 2.4-14.4kbps
  • Supports T.38 protocol
FXS Interface
  • 2-wire Loop start
  • Programmable AC impedance, Feeding voltage, Ring voltage, Ring Cadence, Loop current and call progress tone
  • On-Hook voltage: 48V dc
  • Ring voltage: 45Vrms
  • Loop current: Constant 23mA

Remote Extensions working over a LAN/WAN