Wireless priority service (WPS) authorization

A method of operating a wireless data communication network to serve Wireless Priority Service (WPS) communications, the method comprising:

• a Proxy Call State Control Function (P-CSCF) Session Initiation Protocol (SIP) server system transferring a WPS authorization code;
• a WPS communication device wirelessly receiving the WPS authorization code;
• the WPS communication device wirelessly transferring a WPS SIP message having the WPS authorization code and a WPS session request;
• the P-CSCF SIP server system receiving the WPS SIP message and authorizing the WPS SIP message based on the WPS authorization code, and when the WPS SIP message is authorized, the P-CSCF SIP server system identifying network addressing based on the WPS session request and transferring a response message that identifies the network addressing;
• and
• the WPS communication device wirelessly receiving the response message and wirelessly transferring WPS data over the WPS session using the network addressing.