1. A method for processing a voice call, comprising the steps of: based on a Customized Applications for Mobile Network Enhanced Logic (camel) phase 3 (camel 3 ), loading camel Application Part (CAP) operation libraries and algorithms of a camel phase 1 (camel 1 ) and a camel phase 2 (camel 2 ) to a service creation environment (SCE) version of the camel 3 ; identifying a network type of camel according to an application context of the camel, and determining whether to modify Initial Detection Point (IDP) parameters according to the identified network type, wherein in the steps of identifying the network type of the camel according to the application context of the camel, and determining whether to modify the IDP parameters according to the identified network type, the following steps are comprised: when the network type of the camel is identified as a camel 1 network type or a camel 2 network type according to the application context of the camel, modifying the IDP parameters; and when the network type of the camel is identified as the camel 3 network type according to the application context of the camel, making no modifications; triggering a service of a camel 3 network type; the service identifying a network type of camel, in which a current call is located, based on an event number and IDP parameters; and invoking, according to the identified network type of the camel in which the current call is located, a CAP operation library and an algorithm of a corresponding camel to process parameter information in an IDP, and invoking a signalling of a corresponding network type in subsequent operations.