A call method, comprising: when roaming from a home public land mobile network HPLMN to a visited public land mobile network VPLMN, obtaining, by a terminal device, a first emergency number list of the VPLMN, wherein the first emergency number list comprises at least one emergency number, and the emergency number corresponds to at least one emergency service type; obtaining, by the terminal device, a first number, and when the first number is an emergency number in a second emergency number list of the HPLMN and the first number is not an emergency number in the first emergency number list, determining a second number based on the first number, wherein the second number is an emergency number in the first emergency number list, and the second number and the first number correspond to a same emergency service type; and initiating, by the terminal device, an emergency call based on the second number; and characterized in that: when the first number is an emergency number in the second emergency number list and the first number is an emergency number in the first emergency number list, displaying a first emergency service type corresponding to the first number in the first emergency number list and a second emergency service type corresponding to the first number in the second emergency number list; and when obtaining an instruction for making a call based on the second emergency service type, initiating, by the terminal device, an emergency call based on the first number. when roaming from a home public land mobile network HPLMN to a visited public land mobile network VPLMN, obtaining, by a terminal device, a first emergency number list of the VPLMN, wherein the first emergency number list comprises at least one emergency number, and the emergency number corresponds to at least one emergency service type; obtaining, by the terminal device, a first number, and when the first number is an emergency number in a second emergency number list of the HPLMN and the first number is not an emergency number in the first emergency number list, determining a second number based on the first number, wherein the second number is an emergency number in the first emergency number list, and the second number and the first number correspond to a same emergency service type; and initiating, by the terminal device, an emergency call based on the second number; and characterized in that: when the first number is an emergency number in the second emergency number list and the first number is an emergency number in the first emergency number list, displaying a first emergency service type corresponding to the first number in the first emergency number list and a second emergency service type corresponding to the first number in the second emergency number list; and when obtaining an instruction for making a call based on the second emergency service type, initiating, by the terminal device, an emergency call based on the first number. when the first number is an emergency number in the second emergency number list and the first number is an emergency number in the first emergency number list, displaying a first emergency service type corresponding to the first number in the first emergency number list and a second emergency service type corresponding to the first number in the second emergency number list; and when obtaining an instruction for making a call based on the second emergency service type, initiating, by the terminal device, an emergency call based on the first number.