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Published Option
Default Value: 0
Valid Values: sip.call_rate_period should be non-negative integer.
Changes Take Effect: At start/restart
Specify the call rate period in milliseconds for overload control. It
works along with parameter call_rate. For example, if call_rate is set
to 10 and call_rate_period is set to 500 (ms), then SIP line manager
can accept at most 10 incoming calls every 500 milliseconds. If there
are more than 10 incoming calls within 500 milliseconds, the excess calls
will be rejected with response 486 Busy Here. By default,
call_rate_period is set to 0, which means no overload control at all.
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