Unifi Talk with Twilio SIP trunk 15+ second delay fix

Unifi Talk with Twilio SIP trunk 15+ second delay fix



I have Cloud Key Gen2 Plus behind Sonicwall, all incoming calls with Twilio SIP trunk have a 15+ second delay.

I find out that Unifi Talk uses the RTP port range 16384 - 32768 (UDP), I added the UDP port range to SonicWall policy it works for me.

/etc/freeswitch/autoload_configs/switch.conf.xml

  <!-- RTP port range -->

  <!-- <param name="rtp-start-port" value="16384"/> -->

  <!-- <param name="rtp-end-port" value="32768"/> -->

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