Just insert your own Mobile Portable Cell Phone and start using your...
 
Regular (Analog) Telephone-Corded or Cordless-
Speakerphone or Phone System, or Analog Switch.
 

                                                 
"Plugcell" single line and 6-unit "Combiner" Case (for less antennas and electric plugs), but same great price!

Great Price $299.95 Retail/ $249.95 Introductory Sale
(Analog Chip $49. End-to-End Signaling $25 per line)

• VoIP? No problem, "Reverse Polarity"/Answer Detection Works. (GSM SIM inserted Fixed Wireless Terminals Click Here)
  
• PBX/Phone System? Least Cost Routing "Cell-to-Cell"-Use "Phone to Phone" Free Calling, or  "Night & Weekends" 
  
• Credit Card Machine? Use your Verifone or Nurit with this unit set to the "Analog" mode. (GSM Card Reader pdf Click Here)
  
• Fax Machine? Use your regular Fax with this unit in the Analog Mode (GSM Fax PM70, Click Here)
  
• Telemetry Access? This unit can set to "Analog" mode (Verizon & Alltel in USA) to allow tones.
• Alarm System? At Home (Backup), on your Boat or Vacation Home, or Construction Site (primary line) ? (GSM Alarm Backup? Click Here)
  

COMPATIBLE CELL PHONES
PlugCell and Mountable Rack
Click Here

 SIM Inserted "Omikron" &  "Omega"
8 PSTN/8 GSM/8 Extensions- Live
Click Here
No need for a PBX? All wireless GSM-Omega. See the PDF
Use with your PBX? Omikron. See the PDF