MX land line with same area code to PMH Line, call directly
MX land line with different area code to PMH Line, add 01
MX land line with same area code to PMH Line, add 044
MX land line with different area code to PMH Line, 045
MX cell phone to PMH Lines, call directly
US/CAN cell phone to PMH Line, add 011 52 or +52
US cell phone to PMH Line, add 011 52 1 or +52 1
CAN cell phone to PMH Line, add 011 52 11 or +52 11