1. Kevin Nimosh's Avatar
    I'm getting network or SIM card error while trying to activate call waiting options in call settings. Please someone help me to fix this. Attaching error screen shot
    Attached Thumbnails Network or sim card error in samsung s7 edge-screenshot_20170820-222158.jpg  
    08-23-2017 12:15 PM
  2. PJRed2008's Avatar
    Welcome to Android Central. The only one who can resolve those issues is your carrier. Are you sure your carrier account includes call waiting?
    08-23-2017 12:29 PM

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