Which module of SMS gateway is responsible for message caching?

Message caching module. According to the information of the query blog network, the short message gateway mainly solves the problem of short message interworking and SP access between the network and operators, and its message cache module is mainly responsible for temporarily storing the received messages for subsequent transmission. This module will adopt some cache algorithms, such as LRU algorithm or FIFO algorithm, to ensure the effective use of cache space.