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Method


 Method used to provide early media.

• pEarlyMediaP Early Media– P-Early-Media header value is used for selection the RTP streams.
  • defaultGatingMethod Default Gating Method– Select an option to specify the cut-through method if p-early-media header is   not received from peer.
    • inactiveInactive
    • recvonlyRecvonly
    • sendonlySendonly
    • sendrecvSendrecv (default)
  • egressSupport Egress Support - Use this flag to include PEM=supported message in the egress INVITE.

    • disabled Disabled - Egress INVITE does not include PEM=supported message regardless of the presence/absence of PEM in the ingress INVITE.

    • enabled Enabled (default) – Egress INVITE includes PEM=supported message regardless of the presence/absence of the PEM in the ingress INVITE.
• rtpServerTable Rtp Server Table– Enter an RTP Server Table name to specify the RTP server profile. This option uses RTP Server Profile to determine whether early media is enabled. If the c-line of the session description matches an   entry in the RTP profile, early media is allowed. RTP Server Profiles are configured per Address Context. One RTP Server Profile is tied to a single Early Media Profile if this option is selected.
• sessionAnswer Session Answer(default) – Use this option for media cut-through on receipt of session answer.

Forking Behaviour


• firstProvResponse First Prov Response – First Reliable Provisional response. Cut through for first provisional response and suppress the rest until final response is received.
• firstRtp First Rtp – When this option is selected, the SBC's selection of provisional response for cut-through is determined by the arrival of media packets corresponding to that provisional response. Select this option and set dynamicLRBT set Dynamic LRBT flag to 'enabled' when forking is enabled. With firstRtp First Rtp enabled, forking behavior is the last provisional response until 180 is received. If firstRtp First Rtp is enabled, but dynamicLRBT Dynamic LRBT flag is disabled, forking behavior defaults to the last provisional response
• lastProvResponse Last Prov Response (default) – Last Reliable Provisional response. Cut through when the latest provisional response with SDP is received.
• pemPriority Pem Priority – PEM (P-Early-Media) based. Cut through occurs based on the value of the PEM header (default value is sendrecv if not configured).