Busy tone heard when dialing to iphone over Volte
lycaesar
Level 1
Please tell us some basic information before asking for help:
- Model Name: ASUS_X00TDE
- Firmware Version: PKQ1.WW_Phone-16.2017.2002.061-20200219
- Rooted or not: No
- Frequency of Occurrence: Always
- 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.
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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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Are you using Airtel . And is this happens only for AIRTEL TO AIRTEL VoLte call.?
Yes - you get a busy tone with AIRTEL VOLTE calling up any phone - iphone and others too. Its bit confusing as first I too thought the other person is busy but later on got used to it. Anyways, I am not using VOLTE anymore as I feel there is a higher battery discharge using it - my experience.
Its airtel problem not asus contact with Airtel CC. I had the same problem, whenever i tried to call one specific number its says busy then i thought i was blocked(calling from other sim works fine) by that user but i am not then i contact with airtel CC and they fixed it.
This issue dates back to the time when AIRTEL launches VoLte in 2017. Atleast for you they fixed it. But for me it exists till now. Airtel never consider it as issue. I am used to it like how i used to be ready for ASUS buggy software 1.5 years back.
Hi lycaesar,
Could you tell us the carrier?
Please also check your PM for a message I have sent you.
Thank you 🙂
I have replied you PM. Thanks
Hi lycaesar,
Thank you for waiting. A new firmware update has been released and improved the behavior. We suggest that you download this version WW-16.2017.2007.084. You may manually download from our website, or check update in Settings > System > System update.
https://www.asus.com/Phone/ZenFone-Max-Pro-M1/HelpDesk_BIOS/
How to update firmware on my phone? | Official Support | ASUS Global
Thank you🙂