I understand the technical issue but T-Mobile should prompt at switching, if this is the case, a message to the customer, that will be a $3 /min charge if continue talking (just like Google Voice announce 1c/min for using their service)
I understand the technical issue but T-Mobile should prompt at switching, if this is the case, a message to the customer, that will be a $3 /min charge if continue talking (just like Google Voice announce 1c/min for using their service)