Update from OP: Still having this problem.  *86 gives msg 'Call cannot be completed as dialed....' *PLUS* I too am starting to have random shutdowns.  I thought it was due to my inadvertantly pressing and holding the power button while carrying the phone, but, I have confirmed instances where this i...

Hi, I have the new BV9900 with Android 10.  Since getting the phone, voicemail *86 has not worked.  It returns 'The number cannot be completed as dialed, please check the number and try your call again'.  I have found a way to make it work by replacing *86 with my own mobile number, however, that wi...