Any other having BSNL 4G sim in ASUS ZENFONE MAX PRO M1

I am using MAX PRO M1.
My BSNL 4G sim card shown call waiting is enabled. But not receive any calls during calls.
Please how to solve this issues.
Other network SIMs are working prefect
1
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Comments
Problem is solved
Yes I have What Information you need bro
I face call waiting service not working. But I clear this issues.
DOES ASUS ZENFONE MAX PRO M1 support BSNL 4G VOLTE SERVICE?
Hi [email protected],
BSNL VoLTE is not supported on ZB601KL. Sorry for any inconvenience this may cause.
When will get BSNL VOLTE SUPPORT
Yes , I am using asus zenfone max pro m1. I am leaving kanyakumari . Bsnl 4G volte is enabled. My friends using mi and redmi devices bsnl volte is working but asus zenfone max pro m1 not work.
Asus team please enable bsnl Volte