Teleworkers audio issues out SIP trunks

[Waldosworld]

On further testing of SIP trunks MCD to Level3 via watchguard firewall.

Teleworker making or receiving call via SIP trunk one way audio.
Teleworker out --X-->
in <--OK--

 

[wireman50]

We had same with a watchguard FW, sorted by IT so not sure what it was but I think it was to do with the SIP helper in the FW and getting it turned off.

 

[wireman50]

Also I remember that the FW needed a reboot to enable the rules even after setting them in the firewall and the rules seeming to be there and working.

 

[Waldosworld]

I am told that SIP helper is disabled.

 

[wireman50]

Yup, thats what we were told but it was still screwing with the headers.

 

[Waldosworld]

Issue resolved.
Traceroute showed MBG sending out the WAN side.
Added the Level3 IP Address into the local networks
Test call 2-way audio.