Call pretreatment method and device thereof

The invention discloses a call pretreatment method and a device thereof, which are used in the condition that a call system is in overload state. The method comprises the following steps: after the call of a user is interrupted, when the user calls again, presetting an overload pass rate for the user, and conducting call pretreatment according to the overload pass rate, wherein the overload pass rate is larger than the overload pass rate of the current system. The device comprises a setting module and a call pretreatment module, wherein the setting module is used for setting the overload pass rate when the user calls again after the call of the user is interrupted, wherein the overload pass rate is larger than the overload pass rate of the current system; and the call pretreatment module is used for conducting call pretreatment according to the overload pass rate set by the setting module. In the invention, the success rate when the user call again is improved, and the purpose of improving the degree of satisfaction of the user is achieved.