Method for controlling web-based communication, using: A gateway (ComX) providing an API for integrating communication with a WebRTC standard Web browser, comprising a plurality of plug-in-capable connectors for connecting further platform elements to the gateway, comprising one or more of the following: IP multimedia subsystem, PBX, SIP proxy, telephone system, simple conference with group call, voicemail systems; including the following steps: - Establishing a communication connection from the web browser to the gateway via the API, - Verifying the communication target by the gateway and establishing a communication link between the API and a connector from the plurality of connectors associated with a platform element, - Establishing a communication connection between the connector and the platform element, - Transferring communication information between the web browser and the platform element via the API, the gateway and the connector, with the communication information being adapted by the connector, wherein connectors are logged on, exchanged or switched off during operation of the gateway, wherein the connectors are software modules which are integrated into the gateway as plug-ins and each of the plurality of connectors can be addressed by the web browser via the same uniform API of the gateway, A gateway (ComX) providing an API for integrating communication with a WebRTC standard Web browser, comprising a plurality of plug-in-capable connectors for connecting further platform elements to the gateway, comprising one or more of the following: IP multimedia subsystem, PBX, SIP proxy, telephone system, simple conference with group call, voicemail systems; including the following steps: - Establishing a communication connection from the web browser to the gateway via the API, - Verifying the communication target by the gateway and establishing a communication link between the API and a connector from the plurality of connectors associated with a platform element, - Establishing a communication connection between the connector and the platform element, - Transferring communication information between the web browser and the platform element via the API, the gateway and the connector, with the communication information being adapted by the connector, IP multimedia subsystem, PBX, SIP proxy, telephone system, simple conference with group call, voicemail systems; including the following steps: - Establishing a communication connection from the web browser to the gateway via the API, - Verifying the communication target by the gateway and establishing a communication link between the API and a connector from the plurality of connectors associated with a platform element, - Establishing a communication connection between the connector and the platform element, - Transferring communication information between the web browser and the platform element via the API, the gateway and the connector, with the communication information being adapted by the connector, - Establishing a communication connection from the web browser to the gateway via the API, - Verifying the communication target by the gateway and establishing a communication link between the API and a connector from the plurality of connectors associated with a platform element, - Establishing a communication connection between the connector and the platform element, - Transferring communication information between the web browser and the platform element via the API, the gateway and the connector, with the communication information being adapted by the connector, wherein connectors are logged on, exchanged or switched off during operation of the gateway, wherein the connectors are software modules which are integrated into the gateway as plug-ins and each of the plurality of connectors can be addressed by the web browser via the same uniform API of the gateway,