Busy tone heard when dialing to iphone over Volte

lycaesarlycaesar Level 1
edited September 2020 in ZenFone Max Pro Series

Please tell us some basic information before asking for help:

  1. Model Name: ASUS_X00TDE
  2. Firmware Version: PKQ1.WW_Phone-16.2017.2002.061-20200219
  3. Rooted or not: No
  4. Frequency of Occurrence: Always
  5. APP Name & APP Version (If your issue relates to the app):

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.


When VoLTE is turned on, everytime i make call to iphone, i will hear busy tone and i will cancel the call. However, the called side actually rings and can answer the call if i do not cancel the call


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