Data transmission in wireless communications networks

A method in a proxy, the method comprising:

• receiving from a server in a second transport domain, a packet being directed to a communications device in a first transport domain;
• forwarding the packet to the communications device and sending to the server a traffic handling offer message, the traffic handling offer message including a plurality of traffic handling options;
• receiving from the server an indication of a selected one of the plurality of traffic handling options;
• and
• applying the selected traffic handling option to packets received from the server in the second transport domain, to be forwarded by the proxy to the communications device in the first transport domain.

A server, comprising a processor and a memory, said memory containing instructions executable by said processor whereby said server is configured to:

• send, to a proxy from a second transport domain, a packet being directed to a communications device in a first transport domain;
• receive from the proxy a traffic handling offer message, the traffic handling offer message including a plurality of traffic handling options to be applied by the proxy to packets directed to the communications device, sent by the server to the proxy from the second transport domain and to be forwarded by the proxy to the communications device in the first transport domain;
• select one of the plurality of traffic handling options;
• and
• send an indication of the selection to the proxy.

A method in a server, the method comprising:

• sending, to a proxy from a second transport domain, a packet being directed to a communications device in a first transport domain;
• receiving from the proxy a traffic handling offer message, the traffic handling offer message including a plurality of traffic handling options to be applied by the proxy to packets directed to the communications device, sent by the server to the proxy from the second transport domain and to be forwarded by the proxy to the communications device in the first transport domain;
• selecting one of the plurality of traffic handling options;
• and
• sending an indication of the selection to the proxy.