Patent ID: 11736621

Abstract:
A method of quick set up of PSTN modem connection is proposed. The method of quick set up of PSTN modem connection comprises: setting access to the data channel, identifying channel characteristics, configuring PSTN modems depending on the characteristics of the channel, configuring echo compensators of PSTN modems, negotiating the connection protocol and data transfer between PSTN modems according to the configuration using the agreed protocol where: data transmission is carried out in duplex mode with the separation of signals of reception and transmission by echo compensation, identification of channel characteristics and adjustment of the echo compensator of each of the PSTN modems is performed, respectively, when receiving and transmitting at least one training sequence by each PSTN modem, access to the data channel is carried out by sending call by PSTN modem, which contains the training sequence and connection parameters for negotiation, where using a multiple access protocol, when each of the PSTN modems is connected to the data channel asynchronously, without agreeing on the time of connection and without the need to pre-allocate the roles of calling and responding modems.