Method and apparatus for distinguishing priority service from eMLPP enhancement

摘要

The foregoing roaming scenarios are summarized in the Table given below. In accordance with the teachings of the present invention, a method and apparatus is presented for distinguishing between priority services. A new parameter is defined in an update location message. The new parameter enables an MSC/VLR to recognize and distinguish priority services. For example, the new parameter is used to distinguish eMLPP priority service from WPS priority service. In addition, the HLR will send a new parameter in the ISD message to distinguish which priority service subscription is applicable.