Wireless messaging with high-priority quality-of-service

1. A method of operating a wireless communication device to transfer a high-priority message with a high-priority Quality-of-Service (QoS), the method comprising:

circuitry receiving a request for the high-priority message, and in response, signaling a radio to wirelessly attach to a wireless communication network using a high-priority-attachment Establishment Cause and generating a Session Initiation Protocol (SIP) message that includes the high-priority message and that indicates the high-priority-attachment Establishment Cause in a P-Access-Network-Info (PANI) header;

the radio wirelessly attaching to the wireless communication network using the high-priority-attachment Establishment Cause; and

the radio wirelessly transferring the SIP message that indicates the high-priority-attachment Establishment Cause in the PANI header and that includes the high-priority message to the wireless network, wherein the wireless network transfers the SIP message to a message network using the high-priority QoS responsive to the high-priority-attachment Establishment Cause used for wireless attachment and wherein the message network transfers the high-priority message using the high-priority QoS responsive to the high-priority-attachment Establishment Cause in the SIP message.

2. The method of claim 1 further comprising:

the circuitry receiving a standard request for a standard communication and responsively signaling the radio to wirelessly attach to the wireless communication network using a standard Establishment Cause; and

the radio wirelessly attaching to the wireless communication network using the standard Establishment Cause and wirelessly transferring a standard communication to the wireless communication network.

3. The method of claim 1 further comprising:

the circuitry receiving an emergency request for an emergency communication and responsively signaling the radio to wirelessly attach to the wireless communication network using an emergency Establishment Cause; and

the radio wirelessly attaching to the wireless communication network using the emergency Establishment Cause and wirelessly transferring an emergency communication to the wireless communication network.

4. The method of claim 1 wherein:

the circuitry generating the SIP message comprises generating a SIP INVITE message; and

the radio wirelessly transferring the SIP message comprises transferring the SIP INVITE message.

5. The method of claim 1 wherein the circuitry receiving the request for the high-priority message comprises receiving a data message directed to a high-priority destination number.

6. The method of claim 1 wherein the high-priority message comprises a Wireless Priority Service (WPS) message.

7. The method of claim 1 wherein the high-priority message comprises an Internet Protocol Short Message (IPSM).

8. The method of claim 1 wherein:

the circuitry generating the SIP message comprises generating the SIP message that also indicates a high-priority Access Class;

the radio wirelessly transferring the SIP message comprises transferring the SIP message that also indicates the high-priority Access Class; and

the message network transfers the high-priority message using the high-priority QoS responsive to both the high-priority-attachment Establishment Cause and the high-priority Access Class in the SIP message.

9. The method of claim 8 wherein the high-priority Access Class comprises Access Class 14.

10. A wireless communication device to transfer a high-priority message with a high-priority Quality-of-Service (QoS), the wireless communication device comprising:

circuitry configured to receive a request for the high-priority message, and in response, signal a radio to wirelessly attach to a wireless communication network using a high-priority-attachment Establishment Cause and generate a Session Initiation Protocol (SIP) message that includes the high-priority message and that indicates the high-priority-attachment Establishment Cause in a P-Access-Network-Info (PANI) header;

the radio configured to wirelessly attach to the wireless communication network using the high-priority-attachment Establishment Cause; and

the radio configured to wirelessly transfer the SIP message that indicates the high-priority-attachment Establishment Cause in the PANI header and that includes the high-priority message to the wireless network, wherein the wireless network is configured to transfer the SIP message to a message network using the high-priority QoS responsive to the high-priority-attachment Establishment Cause used for wireless attachment and wherein the message network is configured to transfer the high-priority message using the high-priority QoS responsive to the high-priority-attachment Establishment Cause in the SIP message.

11. The wireless communication device of claim 10 further comprising:

the circuitry configured to receive a standard request for a standard communication and responsively signal the radio to wirelessly attach to the wireless communication network using a standard Establishment Cause; and

the radio configured to wirelessly attach to the wireless communication network using the standard Establishment Cause and wirelessly transfer a standard communication to the wireless communication network.

12. The wireless communication device of claim 10 further comprising:

the circuitry configured to receive an emergency request for an emergency communication and responsively signal the radio to wirelessly attach to the wireless communication network using an emergency Establishment Cause; and

the radio configured to wirelessly attach to the wireless communication network using the emergency Establishment Cause and wirelessly transfer an emergency communication to the wireless communication network.

13. The wireless communication device of claim 10 wherein:

the SIP message comprises a SIP INVITE message; and

the radio is configured to wirelessly transfer the SIP INVITE message.

14. The wireless communication device of claim 10 wherein the request for the high-priority message comprises a data message directed to a high-priority destination number.

15. The wireless communication device of claim 10 wherein the high-priority message comprises a Wireless Priority Service (WPS) message.

16. The wireless communication device of claim 10 wherein the high-priority message comprises an Internet Protocol Short Message (IPSM).

17. The wireless communication device of claim 10 wherein:

the circuitry is configured to generate the SIP message that also indicates a high-priority Access Class;

the radio is configured to wirelessly transfer the SIP message that also indicates the high-priority Access Class; and

the message network is configured to transfer the high-priority message using the high-priority QoS responsive to both the high-priority-attachment Establishment Cause and the high-priority Access Class in the SIP message.

18. The wireless communication device of claim 17 wherein the high-priority Access Class comprises Access Class 14.