Hi - I am trying to set-up call waiting on my Huawei Mate P20 Pro for the 1st time
When I try to enable this in settings I get the error message "Network or SIM card error"
When I try to enter *43# in the phones keypad I get the error message "Call waiting - connection problem or invalid MMI code".
I have had this SIM for about 3 years. The phone was not purchased from VM
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Seems to be a network thing that need intervention Virgins end if posts on here are anything to go by.
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Yes - it does appear to be so after looking at other posts in this form
Thank you for your post.
What I will do is pop you over a private message so that I can take a look for you.
Perfect, thank you for letting me know that.
All the best 🙂
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