Hey all, we recently replaced the default Telstra V7610 modem with a Draytek 2860 Modem,
I have opened up all the ports to match what was on the Telstra router, all phones and our FreePBX registered straight away, however there is quite a bit of noise / echo / beeping noise on the external side of the call.
I am unsure what other setting i need to change on the router.
What i have tried so far.
Applied QOS to SIP/RTP
Enable first priority for VOIP on UDP Port 5060.
Restarted both Router and Freepbx.
Freepbx version 2.11
thank you for the reply, unfortunately it did not help. I searched what you suggested and it sounded exactly like the issues i have, i ran the following command using telnet
To disable SIP ALG type “sys sip_alg 0”
Type “sys commit”
I then rebooted the router and freepbx box, as soon as it all booted back up, all call came through and it was noisy still.
I tested what i done with the following command sys sip_alg ?” and it says disabled.