Patent ID: 11909909
Assignee: TELL-SEC AG
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The method according to claim 1, the method further comprising one of the following (a) and (b):
(a) setting a time window by the server after transmitting the server telephone number to the telecommunications terminal within which the server is ready for detecting the voice call setup request directed by the telecommunications terminal to the server telephone number, and wherein setting the time window comprises setting a time from which the time window starts to run and setting a duration for running the time window, or a time end point,
(b) setting a time window by the server after transmitting the server telephone number to the telecommunications terminal, within which the server is ready for detecting the voice call setup request directed by the telecommunications terminal to the server telephone number, and wherein setting the time window comprises setting a time from which the time window starts to run and setting a duration for running the time window, or a time end point, and transmitting the time and the duration or the time end point, respectively, to the telecommunications terminal, and the time end point or the time end point to the telecommunications terminal, wherein the transmission of the time and the duration or the time end point takes place in the course of the installation of the application software on the telecommunications terminal or with the download of the application software.