Can I make a call on my 3G mobile phone if I am not in the 3G service area?
All 3G mobile phones also support GSM (2G) system. The phone will automatically detect 3G signal when you enter the 3G service area and switch to 2G system when you are out of 3G service area. So, you can make or receive calls even if you are not in the 3G service area. 
What would cost me if I use TrueMove 3G service? 
Fee for TrueMove 3G service will be charged when the service is officially granted. Presently, the use of voice, SMS, MMS or contents services via 3G is charged on a 2G basis. However, data and Internet services are currently offered free of charge. 
Can I use 3G service when I travel abroad?
It depends on what mobile band the destination you are traveling to is operated and whether your mobile phone supports 3G with the same band. However, 3G 850 MHz system is generally used in North and South Americas as well as Australia.
What other devices can I use to connect to the 3G Internet from my computer?
Apart from 3G mobile phone, other accessories can be also used to get you connected to the wireless Internet i.e.
3G USB Modem known as Air Card can be plugged into your computer’s USB port and get you connected to wireless Internet.
3G Wi-Fi Router converts the 3G signal to a Wi-Fi signal and you can get connected to the Internet on the move.
What does the 3G+Wi-Fi sign refer to?
The 3G + Wi-Fi sign tells you that 3G and Wi-Fi services are available in that area.
What technology is TrueMove 3G built on?
TrueMove 3G works on WCDMA (Wide Band CDMA) technology which is the most popular system used worldwide on different bandwidths.

What frequency bands does 3G WCDMA technology operate at?

3G WCDMA comprises the following components:

  • The most popular 2100 MHz standard band is used mainly in Europe, Asia and Africa.
  • The second best 1900 MHz band is mostly used in North and South Americas.
  • The third popular 850 MHz band is generally used in North and South Americas as well as Australia.
  • The fourth popular 900 MHz and GSM 900 MHz bands are commonly used in Europe and Asia.
What speed is TrueMove 3G network operating at?
TrueMove 3G network is operating at the following speeds:
Downlink speed of up to 7.2 Mbps (HSDPA)
Uplink speed of up to 384 Kbps (standard)

* The speed for receiving or sending data depends on the user’s selected priceplan or package, mobile phone capability and other relevant devices.

How would I know if 3G devices support HSDPA (High Speed Downlink Packet Access)?
The user may check from the mobile phone manufacturer or its website or from the phone packaging.
What speed does 3G technology operate on?
3G technology works on different downlink and uplink speeds.
The speed for receiving data or download speed is usually at
3G Standard: 2 Mbps
  • 3G HSDPA (High Speed Downlink Packet Access): 3.6 Mbps, 7.2 Mbps, 10.2 Mbps, 14.4 Mbps

The speed for sending data or upload speed is usually at
3G Standard: 384 kbps

  • 3G HSUPA (High Speed Uplink Packet Access): 2.0 Mbps, 5.76 Mbps
Which operators in Thailand are currently offering 3G 2100 MHz service?
TOT is the sole operator offering 3G 21000 MHz service. Others are presently not yet authorized that service. It is expected that the NTC will approve for the 3G auction within this year. 
© 2010 True Move Co., Ltd. All rights reserved.
*3G service (on 850 MHz band frequency) is available free of charge as part of network improvement in specific areas for a service excellence experience.