VCCS 네트워크 서비스 다이아그램
Overview of Radio Communication Based on ED137 EUROCAE VoIP Standard:
1. Standardization Process
Version | Year of publication | Key Features and PTT Control Method |
ED-137 (First Edition) | 2009 | Exclusive to RTP Header Extension. PTT control relied solely on in-band bits within the RTP packet. SIP performed only the role of session setup. |
ED-137B | 2012 | Introduction of SIP INFO (Out-of-band). A dedicated XML structure for radio control was defined, and PTT-id and priority management were systematized. |
ED-137C | 2016 | Functional enhancements. IPv6 support has been strengthened, and detailed specifications for security and maritime-specific features (such as MMSI) have been supplemented. |
2.ED137 Configuration
3.ED137 Network Diagram & Call Flow (example)
1.AddPac Floor Control (PTT On/Off)
2.ED137 Floor Control (PTT On/Off)
3.ED137 Floor Control (Squelch On/Off)
4. ED137 Compliant RTP Loopback
6. ED137 Distrubuted BSS (Best Signal Selection)
8. ED137 DSC (Digital Selective Call)
VCS -> Radio
9. ED137 Frequency Change
VCS -> Radio
10. ED137 Power Level/Squelch Threshold
VCS -> Radio
11. ED137 Status Monitoring
12. ED137 Config Monitoring
Demo Scenario :
ED137 Demo Configuration Equipment
· ITMS (AP-PNC2000 H/W): SIP Call Manager + PTT Server +..
· AP-PCT700 (DPMS): Radio Dispatcher Management System
· AP-PCT100: Radio PTT Control Terminal
· AP-LMR2000 LMR Gateway + Motorola Radio
Demo content
1. Registering an ED137 Radio Channel via ITMS WSMM (Web-based Systems Management Manager)
2. BSS Group Call Feature on DPMS (Dispatcher Management System)
3. Emergency Feature on DPMS (Dispatcher Management System)
4. Patch Feature on DPMS (Dispatcher Management System)
