Belgium
RTT Belgium
1980's. The older version of the current PROXIMUS national telecommunication company.
Various projects including High order PCM over coax and primary trunk PCM system.
![Image](/images/2021/08/26/rtt.jpg)
FRANCE
![Image](/images/2021/08/26/sncf_logo.png)
SNCF France
The French railway company.
1990. Modification of Primary PCM used for railway operation nationwide.
Russia
Moscou, Russia
1993. Assist local agent in Moscow and Kalinigrad with System 12 trunk implementation.
Combellga is a joint venture with Russian and Belgian stakeholders. Combellga was acquired by Golden Telecom, Inc.in 2004.
![Image](/images/2021/08/26/combellga_logo2.png)
Ankara, Turkey
![Image](/images/2021/08/26/tcdd_logo.png)
Ankara, Turkey
2015. Turkisch railway in Ankara and Eskisehir.
TCDD Primary PCM network expansion adding new version systems and Network management.