Use this object to define the PCRF window to configure parameters for a specified SIP trunk group that define how the SBC, acting as a P-CSCF, interacts with a Policy and Charging Rules Function (PCRF) parameters.server. Refer to Rx Interface and Rx Interface Support for more information on interaction with the PCRF.
To View and Edit
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PCRF Parameters
On the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > Trunk Group > Sip SIP Trunk Group > Sip SIP Trunk Advanced > SIP Trunk - Media - Advanced > Pcrf. or
All > Address Context > Zone > SIP Trunk Group > Media > Pcrf
The Pcrf window is displayed.
The Pcrf can be checked for each Address Context, for each Zone, for each Sip Trunk Group created or for all the Address Contexts, Zones and Sip Trunk Groups created. Use the drop-down box boxes to select the desired specific Address Context, Zone and Sip SIP Trunk Group.The Edit Pcrf window is displayed you want to configure.
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| 0 | Figure |
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| 1 | Sip Trunk Advanced - SIP Trunk Media Advanced Early MediaMedia - Pcrf Window |
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The following fields are displayed:Use the following table to change the values as needed and then click Save.
| Caption |
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| 0 | Table |
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| 1 | Sip Trunk Group - Advanced Media - PcrfPCRF parameters |
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Parameter | Description |
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Pcrf Realm | Specifies The Specify the DIAMETER domain of a the target Policy and Charging Rule Function (PCRF). The value ranges up to 128 characters. | Pcrf Commitment | The Specify the degree of commitment expected from the PCRF during call setup or call update.
- None (default) – Do not send Authorization/Authentication Request (AAR).
- Required – Send AAR; proceed only if it succeeds.
- Supported – Send AAR; proceed even if it fails.
| Cushion Packet Size | Enable flag this option to use the smallest packet size in an answer from the range supported for each codec for bandwidth estimate. Disable flag this option to use the packet size in the offer. - Disabled (default)
Enabled
| Cushion Null SdpSDP | Enable flag this option to allow an AAR when the initial call setup is an INVITE which lacks SDP (estimate G.711 10 msec as a worst case). Disable flag this option to wait for a reverse offer. - Disabled (default)
- Enabled
| | Signalling Path | Enable flag to subscribe for the Signaling Bearer Eventsthis option to allow the SBC to subscribe to loss of signaling path events. - Disabled (default)
- Enabled
| | Fetch Location Info | The following Specify whether the SBC requests location information. The options are available:
- None (default) - PCSCF SBC does not request for Location location information
- Retrieve In Offer - PCSCF request for Location SBC requests location information in the Initial initial AAR
- Retrieve In Answer - PCSCF request for Location SBC requests location information in the Final final AAR.
| | Prov Signaling Flow | Enable flag this option to allow the SBC to send a P-Access-Network-Info header. - Disabled (default)
- Enabled
| | Terminate On Nw Failure | Enable flag to terminate call on Specify whether the SBC terminates a call after receiving TEMPRARY_NETWORK_FAILURE in AAA. - Disabled (default)
- Enabled
| | Pcrf Interaction Mode | Controls Specify whether the interaction with the PCRF is synchronous or asynchronous. - Synchronous - After sending an AAR to the PCRF, the SBC waits for an answer or time-out of the transaction before it continues call processing.
- Asynchronous - SBC SBC sends INVITE message to egress once it receives the response for the AAR, which is sent towards PCRF.
ASynchronous-SBC sends INVITE message to egress after sending an AAR request. SBC continues with call processing without waiting for any response from the PCRF or time-out of the transaction. The final AAR is sent after receiving the session answer even though the answer or if time-out for or an answer to the preliminary AAR is not received.
| | Pcrf Send Aar Only For Session Answer | This parameter specifies how Specify whether to send AAR messages are sent only after receiving the session answer.
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Make the required changes and click Save at the right hand bottom of the panel to save the changes made.