Flow control buffering

A method in a mobile device that receives packets from a push service via a wireless communications network having a network node, wherein the network node is configured to buffer packets according to flow control parameters, said method comprising:

• establishing a packet data session with the network node of the wireless communications network;
• and
• sending a message to the network node, the message including a timer value for modifying the flow control parameters;
• and
• receiving packets from the network node, wherein the packets have not been buffered for longer than the timer value.

A push service comprising:

• an application server configured to send packets to a mobile device via a wireless communications network, wherein the wireless communications network includes at least a network node that buffers packets according to flow control parameters at the network node;
• and
• a retry timer configured to cause the resending packets that are not acknowledged prior to expiration of the retry timer,
• wherein the retry timer and the flow control parameters are coordinated, such that packets are not buffered at the network node for longer than the retry timer.