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Use the Dry Up Mode Handling window to configure 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.
From the SBC main screen, navigate to All → Address Context → Zone → SIP Sig Port → Dry Up Mode Handling or All → Global → System → Dry Up Mode Handling:
Use the following table while configuring the options, and then click Save.
Edit Dry Up Mode Parameters
Parameter | Description |
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Options Keepalive | Handles the OPTIONS health-check or keepalive messages during dry up mode.
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Options Keepalive Reject Reason | The SIP cause code used for rejecting the keepalive OPTIONS message. |
Ood And Invite | Handles the INVITE and other Out Of Dialog messages during dry-up mode. These configurable actions allow the user to silently discard out of dialog messages (REGISTER, OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INFO, MESSAGE, REFER) and INVITE messages, or to reject these messages with a configurable SIP cause code
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Ood And Invite Reject Reason | The SIP cause code used for rejecting the new INVITE, OPTIONS that require further routing, as well as OOD messages (REGISTER, OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INFO, MESSAGE, REFER). |
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