Traversing of NAT address translation equipment for signaling messages compliant with SIP protocol

摘要

Method of setting up a communication session between a calling client (C1) and a called client (C2), through a communication network (SN1, SN, SN2) containing at least one address translation device (NAT1, NAT2). This method contains stages for the transmission of signaling messages (fs), passing through at least one address translation device and allowing the exchange of the physical addresses of the clients. At least one of the clients implements a solution for the traversing of address translation devices. The method is innovative in that at least one client adds, within the sent signaling messages, a parameter representing the implementation of the traversing solution and that, in the presence of such a parameter, the network devices do not implement their own solutions for the traversing of address translation devices.

主权项

1. Method of setting up a communication session between a calling communication client and a called communication client, through a communication network including at least one address translation device, said method including signaling message transmission by at least one communication client, passing the signaling message through said at least one address translation device and allowing the exchange of the physical addresses of said communication clients for setting up said communication session, the method comprising:
implementing, by at least one of said communication clients, a client traversing solution; adding, by said at least one communication client, a parameter representing the implementation of said client traversing solution within a signaling message to be sent, such that in the presence of the parameter, the at least one address translation device of said communication network does not implement its own traversing solution, the traversing solution of the at least one address translation device being different from the client traversing solution; and wherein the parameter is not an address.