Method for data transmission between, on the one hand, an application server, and, on the other hand, at least one internet-of-things communication device using a mobile communication network, wherein the mobile communication network comprises an access network and a core network, wherein the core network comprises an internet-of-things gateway entity and the access network comprises at least one radio cell and a base station entity associated with the at least one radio cell, wherein first communication data is transmitted between the at least one internet-of-things communication device and the internet-of-things gateway entity, and wherein second communication data is transmitted, using an internet protocol-oriented transmission protocol, between the internet-of-things gateway entity and the application server, wherein the method comprises the following steps: -- in a first step, the at least one internet-of-things communication device is attached to the mobile communication network by means of transmitting at least a first portion of the first communication data between the at least one internet-of-things communication device and the internet-of-things gateway entity, -- in a second step, subsequent to the first step, the at least one internet-of-things communication device transmits payload data to the application server by means of transmitting at least a second portion of the first communication data - between the at least one internet-of-things communication device and the internet-of-things gateway entity -, and at least part of the second communication data - between the internet-of-things gateway entity and the application server -, wherein the first portion of the first communication data and/or the second portion of the first communication data comprise a server identity information related to the application server, wherein the internet-of-things gateway entity, based on the server identity information, selects the application server out of a plurality of application servers, characterized in that the first communication data is transmitted, between the at least one internet-of-things communication device and the internet-of-things gateway entity, using a non-internet protocol transmission protocol. wherein first communication data is transmitted between the at least one internet-of-things communication device and the internet-of-things gateway entity, and wherein second communication data is transmitted, using an internet protocol-oriented transmission protocol, between the internet-of-things gateway entity and the application server, wherein the method comprises the following steps: -- in a first step, the at least one internet-of-things communication device is attached to the mobile communication network by means of transmitting at least a first portion of the first communication data between the at least one internet-of-things communication device and the internet-of-things gateway entity, -- in a second step, subsequent to the first step, the at least one internet-of-things communication device transmits payload data to the application server by means of transmitting at least a second portion of the first communication data - between the at least one internet-of-things communication device and the internet-of-things gateway entity -, and at least part of the second communication data - between the internet-of-things gateway entity and the application server -, wherein the first portion of the first communication data and/or the second portion of the first communication data comprise a server identity information related to the application server, wherein the internet-of-things gateway entity, based on the server identity information, selects the application server out of a plurality of application servers, characterized in that the first communication data is transmitted, between the at least one internet-of-things communication device and the internet-of-things gateway entity, using a non-internet protocol transmission protocol. -- in a first step, the at least one internet-of-things communication device is attached to the mobile communication network by means of transmitting at least a first portion of the first communication data between the at least one internet-of-things communication device and the internet-of-things gateway entity, -- in a second step, subsequent to the first step, the at least one internet-of-things communication device transmits payload data to the application server by means of transmitting at least a second portion of the first communication data - between the at least one internet-of-things communication device and the internet-of-things gateway entity -, and at least part of the second communication data - between the internet-of-things gateway entity and the application server -, wherein the first portion of the first communication data and/or the second portion of the first communication data comprise a server identity information related to the application server, wherein the internet-of-things gateway entity, based on the server identity information, selects the application server out of a plurality of application servers, characterized in that the first communication data is transmitted, between the at least one internet-of-things communication device and the internet-of-things gateway entity, using a non-internet protocol transmission protocol.