Terminal User Configuration File for Service Card Replacement

The terminal performs preliminary actions by storing configuration information locally in the user configuration file before the service card is changed. When a service card change occurs, the terminal searches for and retrieves the corresponding configuration information from the stored user configuration file, eliminating the need for users to manually reset configuration information and achieving automatic adaptation to service card changes.

The configuration information storage system is segmented into two distinct components: server configuration files (stored on the communications server) and user configuration files (stored locally in the terminal). Each file type serves a specific purpose and is managed independently. The user configuration file is further segmented to store configuration information for multiple service cards, with each service card's configuration identified by its IMSI number, enabling automatic retrieval without increasing overall system complexity.

The user configuration file is designed as a universal storage structure that can hold configuration information for multiple service cards simultaneously. Instead of creating separate storage systems for each service card, the terminal uses a single user configuration file that serves multiple functions by storing configuration data for different service cards, each identified by its unique IMSI number. This multi-functional approach enables automatic configuration loading after service card replacement while minimizing storage space requirements.