CHAPTER 1 GENERAL INFORMATION
System Outline
SYSTEM OUTLINE
Summary
This feature allows the PBX to provide basic connection service for interfacing with the other PBX by using Layer 3 protocol which conforms to ETS 300 172. ETS 300 172 is standardized for private telecommunication network as
Figure 1-1 System Outline of Q-SIG
PBX | PBX |
Call
Control
Protocol Control
Data Link Layer
Physical Layer
Q | Q |
Layer 3 | |
DTI | DTI |
Layer 2 | NOTE |
Layer 1 |
Call
Control
Protocol Control
Data LinkDTI Layer
Physical Layer
NOTE: Conforming to
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