sk33760: How to control the number of pending data connections for one control connection
The default is usually 50, I'd suggest initially doubling it to 100 (do not simply crank it to the maximum). It is a bit rare to need to tweak this value, so if you increase it to 100 and still encounter the issue I'd suggest trying to analyze exactly what is going on with your SIP connections before increasing it again. Could indicate some other kind of problem that you need to address.
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