Sonicwall firewall cause any issue for voice quality

[Far891]

Hello,
We are about to install and implement 3CX in our company, we have Sonicwall firewall in our network, I'm wondering if sonicwall cause any issue related to voice quality and delay also echo,
Those who had experience with Sonicwall can help us through this. I already found the link for configuring sonicwall, but we need to make sure that this process goes smoothly.

 

[jcostlow]

That document usually does the trick. We use a TZ 400 at our office. Only differences are that I have enabled consistent NAT and increased the UDP timeout to 300 seconds.

The UDP timeout was required by a former SIP trunk provider but I have just left it in place.

 

[Far891]

That document usually does the trick. We use a TZ 400 at our office. Only differences are that I have enabled consistent NAT and increased the UDP timeout to 300 seconds.

The UDP timeout was required by a former SIP trunk provider but I have just left it in place.

Thank you for your advice, actually we have NSA2650 (sonicwall), if there is additional guide you can point regarding this subject that would be great, we have a large number of incoming and outgoing calls, our concern is that, the sonicwall cause any issue for the voice quality. Thanks

 

[jcostlow]

Here is a link with documentation from another SIP trunk provider. https://support.itel.com/hc/en-us/a...ded-Settings-on-a-Sonicwall-for-Digital-Voice

A lot of guides depend on the carrier for what they want timeout values to be.

 

[cobaltit]

If you are concerned about it, it might be worth looking at putting 3CX in the cloud and then using a SBC. Then you won't need to touch the Sonicwall and it just comes down to bandwidth/traffic management.