There is no switch mechanism moving to VM unless you are taking your landline phone number with you. If this is the case you have to let VM know BEFORE the switch date. If no phone move then it’s best to leave cancelling your previous ISP until VM is installed and confirmed to be working. VM do not use any infrastructure of the previous ISP,
Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2