1.2 Basic System Construction
1.2.2System Connection Diagram
| Private | ITSP*1 |
Trunk (Telephone Company Lines) | IP Network | Network |
|
| |
Analogue/BRI/PRI/T1/E1 |
|
|
Remote PC | WAN |
|
|
| |
Pure | Router | DCE*2 |
|
| (e.g., ADSL |
|
| Modem) |
Batteries
Fax Machine
PC
Printer | Wireless Phone |
ISDN Telephone
| PC |
| |
| IP Softphone |
SLT |
|
| SIP Extension |
APT | DSS Console |
| CTI Server |
External Sensor/ External Relay Device
Doorphone & Door Opener
PS CS
DPT DSS Console |
|
USB | PC |
PC | |
|
BGM/Music On Hold (MOH)
Voice Processing
System
Pager/ Amplifier
Speaker
PC |
*1 | ITSP: Internet Telephony Service Provider |
*2 | DCE: Data Circuit Terminating Equipment |
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