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High Probability of Completion (HPC) features comprise a set of functionalities that provide an enhanced probability of call completion to authorized Government Emergency Telecommunications Service (GETS) and Wireless Priority Service (WPS) users during network stress and/or congestion.

There are two methods in HPC call classification:

• Early HPC classification—an HPC call is recognized based on the received SIP RPH content in the incoming INVITE or the code point in Calling Party's Category (CPC) parameter of the ISUP-MIME. For ANSI, the CPC parameter is National Security/Emergency Preparedness (NS/EP) and for ITU, the CPC parameter is International Emergency Preference Scheme (IEPS).

• Late HPC classification—An HPC call can also be recognized by PSX during analysis of the Called Party Number.

HPC capable switches such as GSX9000 enable HPC calls to receive additional network support to increase the chances of successful call completion.

For more information on GSX9000’s GETS and WPS feature, refer to GSX documentation Support for Government Emergency

Telecomunications Service and Wireless Priority Service.

The SBC

supports a subset of GSX9000's HPC capabilities and the capabilities are as follows:

• HPC call classification that is, early or late HPC classification.
• Call Admission Control (CAC) treatment: ingress CAC for early HPC classified calls and egress CAC treatment for early and late HPC classified calls.
• The Resource-Priority header (RPH) is used for treating and marking SIP calls as HPC calls.
• Network Wide HPC (NW-HPC) License enforcement.

To View Hpc Call Profile

On the SBC Main screen, go to Configuration > Profile Management > Category: Service Profiles > Hpc Call Profile. The Hpc Call Profile window is displayed.

To Edit Hpc Call Profile

To edit any of the created Hpc Call Profiles, click the radio button next to the specific Hpc Call Profile entry.

The Edit Selected Hpc Call Profile window is displayed below.

Make the required changes and click Save at the right hand bottom of the panel to save the changes made.

To Create Hpc Call Profile

To create a new Hpc Call Profile, click New Hpc Call Profile tab on the Hpc Call Profile List panel.

The following fields are displayed:

To Copy Hpc Call Profile

To copy any of the created Hpc Call Profile and to make any minor changes, click the radio button next to the specific Hpc Call Profile entry to highlight the row.

Click Copy Hpc Call Profile tab on the Hpc Call Profile List panel.

The Copy Selected Hpc Call Profile window is displayed along with the fields which can be edited.

The following fields are displayed:

Make the required changes to the fields and click Save to save the changes. The copied Hpc Call Profile entry is displayed at the bottom of the original entry in the Hpc Call Profile List panel.

To Delete Hpc Call Profile

To delete any of the created Hpc Call Profile entry, click the radio button next to the specific Hpc Call Profile entry which you want to delete.

Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.

Click Yes to remove the specific Hpc Call Profile entry from the list.