The SBC supports configurable actions while the SBC is in dry-up mode ("out of service mode"). These configurable actions allow the user to silently discard OPTIONS ping or keepalive messages, or to reject these messages with a configurable SIP cause code. Without this feature's configurable actions, the SBC responds to incoming messages with a "503 Service Unavailable" response.

The following CLI commands are added as part of this feature:

  • The container "dryupModeHandling" is added to "global system" and "sipSigPort" configurations.
  • Four parameters are configurable under "dryupModeHandling":
    • optionsKeepalive
    • optionsKeepaliveRejectReason
    • oodAndInvite
    • oodAndInviteRejectReason