Pantip Bangkok or Pantip Plaza to use it’s full name, is the place to go for all your computer needs. If you want pre-built computers, computer parts, laptops, monitors, software, projectors, printers, scanners, MP3 players cameras and so on, it’s all there, under one roof, scattered over 5 floors.
I have no recommendations for any particular shop as they all seem to be very similar but, as always, shop around for the best deals and shop where all the Thais are shopping. If you can build your own computer then buying all the bits and pieces might save you some money.
You can bargain on some items but many shops have fixed prices on brand name items. All we can suggest it to try your luck..
also if you are looking for Camera and Accessories check out 3rd and 4th floor. and specially looking for Canon DSLR i prefer MBK 5th Floor.
Magic Jack takes 1mbps connection to transfer voice without interruption.but i assume that its a way lot too much bandwidth to transfer voice over Internet. 
by the time if you have interruption in quality have to check from both the end.
List price (US) *
• Body only: $799
• Kit: $899 (with 18-55 mm lens) [check price]
International naming • US: Canon Rebel Digital XTi
• Japan: Canon EOS Kiss Digital X
• Elsewhere: Canon EOS 400D
Body material Plastic (Stainless Steel chassis)
Sensor * • 10.1 million effective pixels
• 10.5 million total pixels
• 22.2 x 14.8 mm CMOS sensor
• RGB Color Filter Array
• Built-in low-pass filter
• 3:2 aspect ratio
Dust reduction * • Low-pass filter vibration at power-on (can be interrupted)
• Anti-static coating on sensor surfaces
• Software based dust-removal (camera maps dust, removed later)
Image sizes * • 3888 x 2592 (L)
• 2816 x 1880 (M)
• 1936 x 1288 (S)
Output formats • RAW (.CR2)
• RAW (.CR2) + JPEG Large/Fine
• JPEG (EXIF 2.21) – Fine, Normal
Image processor DIGIC II
Lenses • Canon EF / EF-S lens mount
• 1.6x field of view crop
Focus modes • Auto Focus
• Manual Focus (switch on lens)
Auto Focus • 9-point CMOS sensor *
• AF working range: -0.5 to 18 EV (at 23°C, ISO 100) *
AF modes • AI Focus
• One shot
• AI Servo
AF point selection • Auto
• Manual
AF assist Flash strobe
Shooting modes • Auto
• Program AE (P)
• Shutter priority AE (Tv)
• Aperture priority AE (Av)
• Manual (M)
• Auto depth-of-field
• Portrait
• Landscape
• Close-up
• Sports
• Night portrait
• Flash off
Metering • TTL 35-zone SPC
• Metering range: EV 1.0 – 20 EV (at 23°C, ISO 100, 50 mm F1.4)
Metering modes • Evaluative 35-zone
• Partial 9% at center
• Center-weighted average
AE Lock AE lock button
AE Bracketing • +/- 2.0 EV
• 0.5 or 0.3 EV increments
Exposure compen.
• +/- 2.0 EV
• 0.5 or 0.3 EV increments
Sensitivity
• Auto (100 – 400)
• ISO 100
• ISO 200
• ISO 400
• ISO 800
• ISO 1600
Shutter • Focal-plane shutter
• 30 – 1/4000 sec (0.5 or 0.3 EV steps)
• Flash X-Sync: 1/200 sec
• Bulb
Aperture values • F1.0 – F91 (0.3 EV steps)
• Actual aperture range depends on lens used
White balance • Auto
• Daylight
• Shade
• Cloudy
• Tungsten
• Fluorescent
• Flash
• Custom
WB Bracketing • +/-3 levels
• 3 images
• Selectable Blue/Amber or Magenta/Green bias *
WB fine-tuning • Blue (-9) To Amber (+9)
• Magenta (-9) to Green (+9)
Color space • sRGB
• Adobe RGB
Picture style * • Standard
• Portrait
• Landscape
• Neutral
• Faithful
• Monochrome
• User 1
• User 2
• User 3
Custom image parameters * • Sharpness: 0 to 7
• Contrast: -4 to +4
• Saturation: -4 to +4
• Color tone: -4 to +4
• B&W filter: N, Ye, Or, R, G
• B&W tone: N, S, B, P, G
Drive modes • Single
• Continuous: 3.0 fps up to 27 JPEG / 10 RAW frames *
• Self-timer 10 secs (2 sec with mirror lock-up)
Mirror lockup Yes (custom function)
Viewfinder • Pentamirror
• 95% frame coverage
• Magnification: 0.8x (-1 diopter with 50 mm lens at infinity)
• Eyepoint: 21 mm
• Dioptric adjustment: -3.0 to +1.0 diopter
• Fixed precision matte
• Proximity sensor disables LCD shooting mode information *
Viewfinder info • AF points
• AF/FE lock
• AEB
• Shutter Speed
• Aperture
• Exposure Level / Compensation
• Max. burst
• AF/MF focus confirmation
• CF warning
DOF preview Yes, button
LCD monitor * • 2.5″ TFT LCD
• 230,000 pixels
• Wide viewing angle (160° horizontal and vertical)
• 7 brightness levels
• Up to 10x zoom playback
Camera settings display • Shutter speed
• Aperture
• Sensitivity (ISO)
• Exposure mode
• Meter / Exposure compenation
• Bracketing
• Flash compensation
• White balance & fine tuning
• Metering mode
• Custom function set
• Auto focus mode
• Drive mode
• Auto focus areas
• Black & white mode
• Beep
• Red-eye reduction
• Image size / quality
• Battery status
• Frames remaining
Record review • Uses last play mode *
• Magnification possible *
• 2 / 4 / 8 sec / Hold
Flash • Auto pop-up E-TTL II auto flash
• Guide number approx 13
• Modes: Auto, Manual Flash On/ Off, Red-Eye Reduction
• X-Sync: 1/200 sec
• Flash exposure compensation: +/-2.0 EV (0.3 or 0.5 EV steps)
• Coverage up to 17 mm focal length (27 mm FOV equiv.)
External flash • E-TTL II auto flash with EX-series Speedlites
• Hot-shoe
Other features • Orientation sensor
• Automatically writes FAT16/FAT32 depending on capacity
Auto rotation • On (playback uses orientation data in file header)
• Off
Playback mode • Single image
• Single image with info (histogram brightness / RGB *)
• Magnified view (1.5 – 10x in 15 steps, browsable)
• 9 image index
• Auto play
• Image rotation
• Jump (by 10, 100 or date)
Custom functions 11 custom functions with 29 settings *
Menu languages
• English
• German
• French
• Dutch
• Danish
• Finnish
• Italian
• Norwegian
• Swedish
• Spanish
• Russian
• Simplified Chinese
• Traditional Chinese *
• Korean
• Japanese
Firmware User upgradable
Connectivity
• USB 2.0 (Hi-Speed)
• Video out
• E3 type wired remote control
Storage • Compact Flash Type I or II
• Microdrive supported
• FAT 12/16 and FAT 32 support
• No CF card supplied
• Up to 9999 images per folder *
Power • Lithium-Ion NB-2LH rechargeable battery (supplied & charger)
• CR2016 Lithium battery (date/time backup)
• Optional ACK-DC20/ACK-700 AC adapter kit
Direct printing • Canon Selphy Printers
• Canon Bubble Jet Printers with direct print function
• Canon PIXMA Printers supporting PictBridge
• PictBridge
Dimensions * 127 x 94 x 65 mm (5.0 x 3.7 x 2.5 in)
Weight * • Body (no battery): 514 g (1.1 lb)
• Body (inc battery): 556 g (1.2 lb)
Software *
• Zoom Browser EX / ImageBrowser
• PhotoStitch
• EOS Utility (inc. Remote Capture; Windows & Mac except Mac Intel)
• Digital Photo Professional (Windows / Mac)
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