In this Section:
The Transparency Profile is the recommended method of configuring transparency on the SBC Core for new deployments as well as when applying additional transparency configurations to existing deployments. Do not use IP Signaling Profile flags in these scenarios because the flags will be retired in upcoming releases.
Refer to the SBC SIP Transparency Implementation Guide for additional information.
Use this object to configure Packet Service Profile flags.
On SBC main screen, go to Configuration > Profile Management > Category: Media Profiles > Packet Service Profile > Flags.
Select the desired Packet Service Profile from the drop-down list to view its respective Flags parameters.
The Flags window is displayed.
The following fields are displayed:
Parameter | Description | ||||||||
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| Disallow Data Calls Flag. Specifies whether data calls are allowed. If enabled, digit data calls are rejected. The options are:
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| Digit Detect Send Enabled Flag. Specifies whether digit detection is enabled on digits sent to the network. The options are:
Note: If interworking without DSP resources is desired, this flag must be enabled. | ||||||||
| Administrative state to use the direct media. The options are:
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| Administrative state to validate the peer support for DTMF events. The options are:
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| Specifies whether to enable Interworking DTMF OOB 2833 Without Transcoding option or not. The options are:
Note: If you enable | ||||||||
Dscp Passthrough | When enabled on both the Ingress and Egress call leg, the DSCP value in the IP header of the media packets will be transparently passed through the system. Once media has been received from the peer, any value set in the
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Ssrc Randomize | This parameter generates a new SSRC for the new RTP stream when re-activating the resource chain. The options are:
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HDCodec Preferred | Enable flag to set HD codecs as preferred codec over non-HD codecs even if transcoding is required. When flag is disabled, continue with existing PSP/IPSP behavior. The options are:
When enabled,
Note:
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Prefer NBPassthru Over HDTranscode | Enable this flag to allow the SBC to choose NB-NB pass-through over HD-HD transcoded call. The options are:
When disabled, the SBC prefers HD-HD transcoded call over NB-NB pass-thru. Note:
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Match Offered Codec Group If Nb Only | Enable this flag to allow the SBC to send only NB in outgoing offer if only NB is received in the ingress offer. Otherwise, do nothing. While sending the offer, this flag becomes is ignored if either HD-only or (HD+NB) is received in incoming offer. The options are:
If this flag is disabled, the SBC uses existing behavior. Note: The flag | ||||||||
Force Route PSPOrder | Enable this flag to send the outgoing offer in the same order as egress route Packet Service Profile irrespective of HD/NB priorities. The options are:
Note:
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| Reserves bandwidth on the basis of the preferred common codec, and police on the worst case codec. This applies to both known and unknown codecs. The options are:
Note: This flag is active for a call when both the PSPs have this flag enabled. If this flag is disabled in any of the PSPs, the flag is not applied. | ||||||||
P | When enabled, SBC reserves the worst case common codec bandwidth on trunk groups and interfaces, but polices on maximum bandwidth for all codecs from Offer or Answer in a pass-through call. The options are:
Note: This configuration applies to all pass-through calls. It works independently from Audio Transparency feature and | ||||||||
T140Call | Specifies whether text media calls, using T.140 codec, are allowed or not. The options are:
For more information on text codecs, refer to Text Codecs. |
Make the required changes and click Save at the right hand bottom of the panel to save the changes made.