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How to Factory Reset Cisco ATA 186/188

How to Factory Reset Cisco ATA 186/188

Process

MAKE SURE THAT ATA IS POWERED ON AND NOT PLUGGED INTO NETWORK

 

Step 1: 

  1. Using an analog phone with full keypad (Unhooked), Press the function button on the top of the ATA. 
  2. Enter the following: 322873738#*​
  3. Enter * to save
  4. Hang Up