patches/openwrt: disable SIP NAT helper by default in firewall config
Disable SIP NAT helper by default, since it is broken and all modern SIP applications work without it [1].
[1] #356
This change was rejected by upstream for now.
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Disable SIP NAT helper by default, since it is broken and all modern SIP applications work without it [1].
[1] #356
This change was rejected by upstream for now.