The VR4400 is a fully featured router with four voice channels that will carry LAN traffic, legacy data and voice with guaranteed quality of service between sites connected via ISDN or leased lines.
• Four ITU-T-G729A voice ports with GUARANTEED QUALITY OF SERVICE on ISDN and leased lines
• Efficient dynamic voice bandwidth management. An active voice call occupies 9.8kbps maximum reducing to less than 2kbps during silence
• Fax capability to 14,400 bps
• Fully featured LAN Router – advanced header compression maximises data throughout ISDN BRI interface for dial-up on demand main link or leased line back-up/top-up
• Leased Line/Frame Relay interface (6.4kbps to 1024kbps)
• SNMP and Telnet management
• Voice over IP distributed PABX capability
• PABX-AC15A capability (option)
APPLICATIONS
• VIRTUAL OFFICE Small branch offices or home workers may instantly connect on demand through the VR4400 using one 64kbps ISDN B channel to gain access to central LAN, PABX voice, facsimile and internet gateway resources. Once an ISDN call is established for one service access to any other facility is available with no additional call costs.
• VIRTUAL CALL CENTRE Home based call centre agents may be instantly deployed during peak periods using the VR4400. One dial up 64kpbs ISDN B channel will provide full remote screen and keyboard functionality with high quality audio transmission.
• KILOSTREAM MULTIPLEXER REPLACEMENT The VR4400 can replace a traditional kilostream leased line multiplexer plus router and offer significantly increased LAN traffic throughout and superior voice quality with ISDN back-up and bandwidth top-up.
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