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No dependencies. Refer to SIP Overload Control Overview topic for more information.
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Transmit SIP OPTIONS (node reset) message: The IMG 2020 resets. Once the node comes back into service, it will transmit to the remote gateway the SIP OPTIONS (node reset) message informing the external gateway that it had reset and it is back in service and can start accepting calls again.
Refer to the SIP Overload Control Overview topic for more information on the Node Reset Notification field.
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Blocked- When the IMG 2020 is configured as blocked, if a call is received the IMG 2020 will respond with a 503 Service Unavailable message.
Refer to the SIP Overload Control Overview topic for more information on the Block Incoming Calls field.
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Enabled- The IMG 2020 will monitor incoming calls. If one or more usage parameters exceed their pre-configured values, the IMG 2020 will inform the external SIP entity that congestion is occurring. Once the usage parameters fall below a second pre-configured value, the 2020 will again inform the external SIP entity that congestion levels are back to normal. This information is sent through the SIP OPTIONS message.
Refer to the SIP Overload Control Overview topic for more information on the Congestion Monitoring field.