METHOD FOR SECURING A CHANNEL FOR VOICE DATA TRANSMISSION AND RELATED SECURING DEVICE

摘要

The invention relates to a method for securing a channel for data transmission between a starting network (N1) and a destination network (N3) via a transit network (N2) having a lower security level, the data including a first set of data including voice data and a set of second data. When the data is transmitted from the starting network to the transit network, the method comprises the following steps: switching (102) the second set of data to a step of encryption according to at least one IPsec protocol in order to obtain encrypted data, and transmitting (114) the encrypted data to the transit network; and switching (102) the first set of data to a step of encoding according to the IPsec processing protocol in order to obtain encoded data, and transmitting (114) the encoded data to the transit network.