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Found these on ebay, they are interesting higher transmit power and an external antenna, there's several others for sale on ebay. Anyone ever seen or tried one? Supposedly works as a cell modem as well
from the ad:
You know how annoying it is when you're out of phone battery or the person on the other end of your mobile phone is breaking up when you're in certain rooms of your home or workplace?
It's time to solve the problem with this dual band GSM desktop phone which has a slot for your mobile's SIM card allowing you to make and take calls via your SIM......but with reception!
Great for Use in:
Remote and mountainous areas
Homes and workplaces with weak signal reception
For public use in shops and bars
Ships, trains and long distance buses
Benefits:
Mobile phone battery dead? Stick your SIM in the desktop phone to access your information
You or your caller are breaking up due to poor reception? Use the desktop phone, with your SIM, for a clear and stress-free conversation
Comes with external antenna to improve signal in poor reception areas
Use indoor or out: powered by either battery or AC adapter
Backlit LCD display shows caller ID and time
Supports modem mode
No need to dial area code when calling local numbers
Auto connection to IP network when dialing long distance
Last call re-dial
Automatic card and net lock function
Optional ring tones
Hands free listening feature
The desktop dual band phone is brand new and boxed and comes with antenna, AC adapter and instruction manual
Specifications:
Supported networks: GSM: 900/1800MHz
Frequency range: transmits 890 - 915MHz & receives 935 - 960MHz
Operating voltage: DC 5V/DC 12V
Stand by time: 48 hours
Talk time: 2 - 6 hours
Static power consumption: ≤25MA
Emissive power consumption: ≤500MA
Receiver sensitivity: -104dBm
Antenna type: all directions, 5.0dB with certain selection of 12dB
Peak power consumption: 0.25/0.5W
AC power: 220V AC
Plug type: 2 flat pins (don't worry if this doesn't fit the sockets in your country as we'll send you a FREE plug adapter)
from the ad:
You know how annoying it is when you're out of phone battery or the person on the other end of your mobile phone is breaking up when you're in certain rooms of your home or workplace?
It's time to solve the problem with this dual band GSM desktop phone which has a slot for your mobile's SIM card allowing you to make and take calls via your SIM......but with reception!
Great for Use in:
Remote and mountainous areas
Homes and workplaces with weak signal reception
For public use in shops and bars
Ships, trains and long distance buses
Benefits:
Mobile phone battery dead? Stick your SIM in the desktop phone to access your information
You or your caller are breaking up due to poor reception? Use the desktop phone, with your SIM, for a clear and stress-free conversation
Comes with external antenna to improve signal in poor reception areas
Use indoor or out: powered by either battery or AC adapter
Backlit LCD display shows caller ID and time
Supports modem mode
No need to dial area code when calling local numbers
Auto connection to IP network when dialing long distance
Last call re-dial
Automatic card and net lock function
Optional ring tones
Hands free listening feature
The desktop dual band phone is brand new and boxed and comes with antenna, AC adapter and instruction manual
Specifications:
Supported networks: GSM: 900/1800MHz
Frequency range: transmits 890 - 915MHz & receives 935 - 960MHz
Operating voltage: DC 5V/DC 12V
Stand by time: 48 hours
Talk time: 2 - 6 hours
Static power consumption: ≤25MA
Emissive power consumption: ≤500MA
Receiver sensitivity: -104dBm
Antenna type: all directions, 5.0dB with certain selection of 12dB
Peak power consumption: 0.25/0.5W
AC power: 220V AC
Plug type: 2 flat pins (don't worry if this doesn't fit the sockets in your country as we'll send you a FREE plug adapter)
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