Patent ID: 9071690
Filing Date: 2015-06-30
Classification: H04L,H04M

Abstract:
1. A supervision method comprising: supervising a transfer of a call set up between first and second call terminals with a supervision device in a communications network implementing an SIP type signaling protocol, wherein supervising comprises the following steps performed after sending a command to transfer the call that has been set up to a call between the first call terminal and a third call terminal and after a disconnection of the call between the first and the second terminals, that disconnection being caused by said command to transfer: obtaining, by the supervision device, at least one item of information relating to progress in setting up the call between the first and third terminals; verifying with the supervision device whether at least one non-set up criterion is true as a function of said at least one item of information; and sending a command from the supervision device to resume the call between the first and second terminals, if the non-set up criterion is true.