2.1.2 System Connection Diagram
Doorphone & Door Opener
BGM/Music On Hold (MOH)
Pager/
Speaker
Remote PC
Main Unit*
4
Expansion Unit*
5
Amplifier
Fax Machine
SLT
External Sensor
IP-PT IP Softphone,
CA
*
3
Client PC
Router
Private
IP Network
ITSP
*
1
Network
DCE
*
2
(e.g., ADSL Modem)
WAN
SIP Phone
IP-CS PS CTI Server PC
(Telephone Company Lines)
PC
PC
Expansion Unit*
5
Expansion Unit*
5
CO Line
Analog/PRI
*1
ITSP: Internet Telephony Service Provider
*2
DCE: Data Circuit Terminating Equipment
*3
CA: Communication Assistant
*4
KX-NS700
*5
KX-NS720
30 Installation Manual Document Version 2016-03
2.1.2 System Connection Diagram
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