The invention provides a voice call method and a device capable of automatically adapting camel network types. The method comprises the following steps: loading the application part manipulation library and the algorithm of camel 1 and camel 2 to camel 3 service generating environment edition; indentifying the camel network type, revising or keeping an IDP parameter according to the indentified network type; triggering the service of the camel 3 network type; indentifying the currently calling camel network type by the service on the basis of the generation number and the IDP parameter; according to the identified camel 1 network type, calling a corresponding camel application part manipulation library and an algorithm to process the parameter information in IDP; and calling a signalling corresponding to the network type in subsequent operation. The invention does not need to upgrade the service product suitable for the network type and can automatically adapt to the current network environment of a user no matter what network environment the user is in to process calling service.