Communication protocol conversion method, and device, system, and gateway device

A communication protocol conversion method, comprising:

• receiving at least one network request message for establishing a communication connection with a third-party system sent by a communication device;
• determining a configuration rule corresponding to the network request message from a set of configuration rules, wherein the set of configuration rules comprises configuration rules of communication protocols of different third-party systems;
• performing a communication protocol conversion on the network request message according to the configuration rule;
• and
• sending the network request message after the communication protocol conversion to a corresponding third-party system;
• wherein the determining the configuration rule corresponding to the network request message from the set of configuration rules, comprises:
• determining the configuration rule corresponding to route information from the set of configuration rules according to the route information carried in the network request message.