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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.

• Disable Disable (default) — RTCP is relayed between the end points for pass-through calls.
  
• Enable — Enable flag this option (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 PassthrougPassthrough settings, RTCP is always relayed.

If this flag option is enabled, the 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 Options are:

• Disable (default)
• Enable

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

This flag is applicable only for SIP Trunk Groups.

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

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

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

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

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

• None (default) — Take no action.
• Packet Loss Trap — Generate trap.

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

Specifies control of RTCP-XR block processing and statistics collection

• Disable (default) – retains existing default behavior (no statistics collection)
• Relay – Allows end-to-end XR block relay (only) and statistics collection if end-to-end peer negotiation for RTCP-XR (a=rtcp-xr:voip-metrics) relay is successful; otherwise XR block is dropped.
• Relay Or Terminate – Allows end-to-end XR block relay or per-leg termination if end-to-end negotiation for RTCP-XR relay is not successful (only one leg supports RTCP-XR). This setting guarantees XR block termination and statistics collection on any call leg where XR blocks are received.