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Messaging Integration
DEFINITY ProLogix Solutions Release 2 Overview 
555-235-100
Issue 2 June 1999 4-4
The DEFINITY Prologix Solutions system with Release 7 or later software can 
support two C-LAN circuit packs. Each C-LAN circuit pack (TN799) can support 17 
LAN ports per circuit pack. Of these ports, only one port supports an Ethernet 
connection required for use with the Lucent INTUITY system. The Lucent INTUITY 
system LAN link does not operate with the synchronous point-to-point protocol 
(PPP) provided by the other ports. The other ports can be used for other DEFINITY 
systems for PPP connections as part of a DCS network. (See Chapter 10 for further 
details about DCS using C-LAN.)
Mode Code
The mode code (in band) link allows the Lucent INTUITY system and a DEFINITY 
ProLogix Solutions system to communicate using the same analog telephone lines 
that connect the two systems for call answer and message retrieval. This integration 
uses touch-tone signaling, call-progress signals, and switch hook flashes over the 
ordinary tip and ring analog wiring to transfer information about the telephone call 
between the two systems. This integration does not require a separate link as needed 
for LAN integrations.
Table 2 summarizes the features available with the different types of integrations for 
DEFINITY systems.