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Network/Connectivity Not able to make call

  1. krisrajeev
    Cupcake Sep 20, 2019

    krisrajeev , Sep 20, 2019 :
    Lately while making a call am getting "Service not supported" error. The error comes up to a phone number in contact list I was able to make calls until previous day, the error goes away after sometime. During the time I get this error I can make phone calls to other numbers.

    Couple of weeks back had a similar issues but different error for a particular phone number, I don't recall the exact error message, and it went away after sometime.

    Am with AT&T and have the latest update, any help will be appreciated.

    Edit: Screenshot added
     

    Attached Files:

    Last edited: Sep 20, 2019

    #1
  2. L1563464302817
    Cupcake Oct 14, 2019

    L1563464302817 , Oct 14, 2019 :
    I am having a similar issue with my oneplus 6t. I have ATT and after the latest update I have not been able to make or receive calls. I can send and receive messages and access the internet ect. Tried reset, hard reset and airplane mode on and off, moving the sim card. the sim card works in my old samsung s6 active just fine, so I dont think it is the sim card.
     

    #2