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Comment: updated with new range for Packet loss threshold SBX-71836
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Use this object to specify Real Time Control Protocol (RTCP) options for the call. RTCP is used to report network traffic congestion data. Various actions (for example call disconnect) may be taken when congestion threshold settings are exceeded.

To View and Edit RTCP Options

On SBC main screen, go to Configuration > Profile Management > Category: Media Profiles > Packet Service Profile >RTCP Options.

Select the desired Packet Service Profile from the drop-down list to view its respective RTCP Options parameters.

The RTCP Options window is displayed.

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0Figure
1RTCP Options- default window

 

To enable RTCP, click the radio button next to Enable in the Edit RTCP Options window. The appearance of the window changes to the following:

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1Profile Management - Media Profiles - Packet Service Profile - Rtcp Options
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The following fields are displayed:

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titleNote

Except RTCP, all the parameters described in the table below are visible only when RTCP is enabled. See Figure 1 and Figure 2 above for the difference.

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0Table
1Packet Service Profile - RTCP Options Parameters
 
ParameterDescription
RTCP

RTCP is used to report network traffic congestion data. Various actions (for example call disconnect) may be taken when congestion threshold settings are exceeded. The options are:

  • Disable (default)— Do not use RTCP for the call.
     
  • Enable — Use RTCP for the call.
Termination For PassthroughSpecifies RTCP termination behavior for pass-through calls. The options are:
  • Disable (default) — RTCP is relayed between the end points for pass-through calls.
  • Enable — Enable flag (as well as RTCP flag) on one leg to terminate RTCP sessions on each leg for pass-through calls. If RTCP and RTCP termination is enabled on one leg of a pass-through call, RTCP is terminated and originated for that leg. If RTCP is enabled on both legs on the pass-through call, irrespective of Termination For Passthroug settings, RTCP is always relayed.
Enable RTCPFor Held Calls

If this flag is enabled, SBC ignores the configured RR/RS values in the Packet Service Profile and send RR/RS = 0 in the offer/answer and disables RTCP when the call is active. When the call is HELD, and a RE-INVITE is sent, SBC uses the configured values in the Packet Service Profile for RTCP bandwidth and enables RTCP. When the call is RESUMED, SBC again disables RTCP by sending RR/RS=0 in the RE-INVITE.

The value of RR ranges from 100-4000 and the value of RS ranges from 100-3000.

If this flag is disabled, the older behavior of SBC is applicable.

options are:

  • Disable (default)
  • Enable
RTCP Mux

When this flag is enabled in the ingress or egress Packet Service Profile, the RTCP-Mux is enabled on the respective call leg of the SBC. This flag is in disabled state by default.

This flag is applicable only for SIP Trunk Groups.

Packet Loss Threshold

Enter a value between 0 or 400-32767 (default = 0) to specify the  to specify the Packet Loss Threshold (number of lost packets/100,000) which will trigger a a Packet Loss Action. This parameter is required if RTCP is enabled. When set to “0”, no packet loss inactivity detection is performed. The default value is 0.

Info
titleNote

Configuring this parameter to a value less than 400 disables threshold detection, so be sure to use a value in the range of 400 to 32767 to enable threshold detection.

 

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Packet_Loss_Threshold_note
Packet_Loss_Threshold_note

This setting can be used in conjunction with   Media Peer Inactivity. To set media peer inactivity timeout value, see Media Peer Inactivity parameter in Media Peer Inactivity page.

For an example configuration of this parameter, see Packet Service Profile - CLI page.

Rr Bandwidth

Specifies the RTCP bandwidth allocated to active data senders. The value ranges from 100 to 4000 and the default value is 250.

Rs Bandwidth

Specifies the RTCP bandwidth allocated for receivers. The value ranges from 100 to 3000 and the default value is 250.

Packet Loss ActionSpecifies what Packet loss action to take when packet threshold is exceeded. The options are:
  • None (default)— Take no action.
  • Packet Loss Trap — Generate trap.

  • Packet Loss Trap And Disconnect — Generate trap and disconnect.

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

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