Issue when calling on the virtuel extension of a CQ

[ERJ1622]

Hi,

Am facing out with an issue at our customer 3CX since i upgrade his 3CX from v18 to v20.

The customer has actually a SIP ID (0) on a extension and same forward to a CQ (8001).

Actual infrastructure of customer 3CX is hosted at our DC with a fix publique IP and on premise i have Fanvil phones behind an SBC. Whats going on is, when dialing the 0 to redirect to the CQ voices are working on 1 way traffic, but if i call the user directly it works perfectly. Several tests done, swap the CQ on the ring group its works fine, upgrade our SBC debian 10 to12 but on desktop application it works also. note also when calling directly to the CQ extension (8001) is not working also. This why i maintain that the issue becomes to the CQ itself.

Can someone help me to sort out this issue please.

Thanks and Regards,

Olivier

 

[IliasL_3CX]

Hello Olivier,

Can you please clarify if the extensions and the SBC are on the same subnet or if the phones are on a different subnet and if so is audio traffic allowed between subnets

 

[ERJ1622]

Hello,

Thank you for the reponse.

All traffic are on the same subnet and audio traffic alow as per requirement of 3CX.

Howerver, i would like to mention something, when the 3CX was on v18 same CQ worked well till upgrade to v20.

Do i need to add something more like port numbers or else please?

Thanks and Regards,

Olivier