NEC ND-71762(E) system manual Network Configuration, Pbx Dti Cch Cct Ati Cot

GENERAL INFORMATION FOR CCIS

4. NETWORK CONFIGURATION

With application of No. 7 CCIS added to the PBX, a network of multiple functions as if it were a single PBX. Since calls can be freely transferred between one PBX and another, most of the existing station services can be ap- plied to inter-PBX call connections.

Further, using the CENTRALIZED BILLING-CCIS service and the CENTRALIZED SYSTEM MANAGEMENT REPORT-CCIS service, billing information and fault information can be processed at one center point instead of processing at each PBX concerned.

Figure 2-4 shows an example of PBX interoffice network for CCIS Digital Line, and Figure 2-5 shows an example of network configuration for CCIS Analog Line.

Figure 2-4 Example of Network Configuration for CCIS Digital Line

LC

LC

ATI

LC

LC

ATI

PBX

PBX

DTI

CCH

CCT

COT C.O

DTI

CCH

CCT

COT C.O

	PBX	DTI
LC		CCH
LC		DTI
		CCH
ATI		CCT
		COT	C.O
		DTI
		CCH
Failure, charging information
	PBX	DTI
LC
LC		CCH
		CCT
ATI		COT	C.O

One channel of DTI shall be used for signals. indicates a speech line. indicates a signal line.

CHAPTER 2 ND-71762 (E)

Page 6

Issue 2