Release assistance indication %XRAI

The proprietary %XRAI command sets Release Assistance Indication (RAI) for control plane. v1.0.x v1.1.x v1.2.x v1.3.x

It is designed for cases where an application sends one packet uplink and expects one response back from the network or server. This can occur also at the end of an application session negotiation, where the application knows that it is going to send the last packet, for example an ACK to a server.

Note: The RAI feature is recommended to be used with the %RAI command and socket option interface. Do not use %XRAI if %RAI is used.