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10 QSIG Global Networking
DEFINITY ProLogix Solutions Release 2 Overview
555-235-100 Issue 2 June 1999 10-7
QSIG Global Networking
DEFINITY ProLogix Solutions is a pioneer in providing compatibility with the QSIG global networking
protocol. This means you can connect DEFINITY ProLogix Solutions with other switches throughout the
world. Lucent Technologies developed the QSIG Global Networking feature to comply with the QSIG
standards developed by the European Computer Manufacturer’s Association and the International
Standardization Organization. It supports the ISDN-Primary Rate Interface connection from switch to
switch as long as both switches support the same protocol.
The Lucent Technologies’ implementation of QSIG features the Name Identification supplementary service
and the Call Forwarding and Call Transfer features. QSIG enables the system to move calls from their
original paths to new paths that cost less or use resources more efficiently. New paths can be set up as the
call is established, while it is being forwarded, or while it is being transferred. DEFINITY ProLogix
Solutions’ implementation of QSIG also supports the ISO QSIG private network diversion supplementary
service, as described in the QSIG standard.
The following QSIG features have been added for DEFINITY ProLogix Solutions Release 2.0:
• QSIG Call Completion
• QSIG Call Independent Signaling Connections
• QSIG DCS Interworking - Called Number ID
• QSIG Message Waiting Indication (MWI)
• QSIG Value - Called Number ID