GTN, General Transmission Network Co., Ltd.

was established in 1997 by a group of experienced telecommunication engineers. We have highly competent engineers who have very strong background in Mobile and Fixed Telecommunication Network, Transmission System, IP Network System, Data Communication Network, Air Conditioning and Refrigeration System, and Electrical System. 

By focusing on Technology variety, we are now offering our services to customers with various technologies including the followings. 

• Transmission Technologies such as PDH, SDH, DWDM 
  
• Radio Network Technologies such as Microwave Radio System, Trunk Mobile System 
  
• Mobile Technologies such as AMPS, GSM, CDMA 
  
• Access Network Technologies, for example ADSL, xDSL 
  
• Computer Network Technologies, for example LAN, WAN 
  
• Private Network and PABX 
  

Since our establishment, we have successfully delivered a ton of various services to our customers, for instance MSC; BSC; BTS; SDH installation and commissioning, Optical fiber cable installation, Microwave installation and commissioning, Field site survey, In-building coverage implementation, engineering consultancy and etc. As such, the company is able to design for our customer “Tailor Solutions” to meet with specific customers’ needs. 
Since it has been presented in Thailand marketplace, a number of projects were implemented and delivered to customers successfully, for instance GSM Base station construction work, BTS installation and commissioning, PDH/SDH equipment installation; commissioning and integration, Trunk Radio system installation, Microwave Radio equipment installation and commissioning, Optical and Copper cable work and Consultancy services.
Our selected projects that can represent our capabilities are shown below; 

• DTAC Cell Site and System Maintenance (Countrywide) 
  
• DTAC Site Rollout Construction (New Site Construction) 
  
• DTAC Site Acquisition Service 
  
• DTAC Community Relations Service 
  
• DTAC 2G/3G/4G expansion service 
  
• DTAC Transmission Implementation and Maintenance (Countrywide) 
  
• DTAC WiFi Implementation and Test (Countrywide) 
  
• DTAC Routine Preventive Maintenance or RPM (Countrywide) 
  
• DTAC Outsource Service 
  
• DTAC Network Coverage Improvement (Countrywide) 
  
• DTAC Facility Improvement (Countrywide) 
  
• PEA Optical Fiber Network CM and PM (Countrywide) 
  
• Huawei/DTAC IPRAN Implementation (North and Central) 
  
• Huawei/DTAC 2G/3G Swap Project (South) 
  
• Huawei/AIS 3G Small Cell in Bangkok 
  
• NSN Transmission Implementation in East, Central, and South for AIS 
  
• Nokia GSM base station installation for DPC network phase 1 
  
• In-building coverage project for DTAC 
  
• Tellabs SDH Implementation project for DTAC 
  
• Lucent SDH Implementation project for DTAC 
  
• SDH Transmission Expansion Project for DTAC (through UIH) 
  
• SDH Transmission Expansion Project for Alcatel (Network of TOT and Orange) 
  
• Microwave NMS system implementation for Orange 
  
• Microwave System Implementation for Orange 
  
• Transmission Network Maintenance for UIH 
  
• Copper cable installation project for UIH 
  
• Optical fiber cable installation project for UIH 
  
• Air Conditioning installation project 
  
• Ericsson - 2G/3G/4G expansion project for DTAC/DTN in BKK, Central and West 
  
• Symphony - OFC and D/W Cable Implementation in BKK and South 
  
• Symphony – OFC and D/W Cable Corrective Maintenance in BKK and South 
  
• ALT – OFC Cable Network MA in BKK, Central, East, and Lower North 
  

Currently as driven by the project’s nature, we have already organized offices to support in both Great Bangkok area and upcountry. These regional offices are ready for any types of field work required by customers, especially for maintenance service of transmission system and microwave system which mostly need immediate reaction once and prior to affecting the traffic. Moreover, as a declining demand in Bangkok and suburban areas, this arrangement definitely will satisfy its customers in some level, at least it is able to make its customers confident that all materials would be well-managed in a safe place and delivered to sites timely prior to actual implementation. Eventually overall cost could become more competitive with a high quality. 

With more than 21 years of playing a key role of a system/network builder/integrator, customers can ensure that GTN has a right capability to fulfill their telecom requirements in all aspects; standard quality, high performance and timeliness.