I have tried the MMI given to me by support and every variant I have found in the community and the wider web. None of them work, in fact it almost seems like I don't have permission to use MMI codes. Had anybody cracked this?
Ringing time before voicemail
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4 replies
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I have heard nothing from the escalation. However I have solved the problem for myself.
For MMI to work you need access to a 2G or 3G network. 3G has been ceased, and Android by default blocks 2G. The solution therefore is to temporarily re-enable 2G, and then the MMI works just fine.
John
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