Solved Digital Receptions not transferring a call to a queue after X amount of seconds for a specific SIP trunk

[VUSALDADASHOV]

Hello,
Recently I faced an issue where Digital Receptions not transferring a call to a queue after X amount of seconds for a specific SIP trunk

First of all I use latest 3CX on debian
Example

I have 5 SIP trunks in 3CX and all of them are working quite well
4 of 5 have digital receptionist, where it has DTMF input options, and each DTMF input forwards a call to apropriate queue

But this scenario didn't worked on one SIP trunk.

When call to that numer +99412433***3 I can hear Digital Receptions. She says something like "if tou know party's extension please dial, or else wait for an operator" Quite Simple huh?
In digital Receptionist settings I

If no input within seconds: 5 seconfs > Connect to a queue > XXX

And what's happening?
I call to +99412433***3
I can hear digital receptionist, but after 5 seconds call ended. And thats all

As I said above, I have 5 SIP trunks. For a testing purpose, I assigned that Digital Receptionist to another SIP trunk number +99412310***8

And what's happening?
I call to +99412310***8
I can hear digital receptionist and call is forwarded to a queue. Phone is ringing. All OK

Hope you understand common problem

How can I troubleshot that, I already sniffed a traffic via Wireshark and couldn't find any criminal

 

[PanagiotisL_3CX]

Hello @VUSALDADASHOV

Seems to be something specific to the SIP trunk with number +99412433***3. Edit the trunk in question, go to the options tab and verify if the option Supports Re-Invite is checked. If yes, disable it and see if the issue persists.

 

[VUSALDADASHOV]

@PanagiotisL_3CX

Thanks for quick response
Indeed, I just unchecked it, and it worked . Now Digital receptionist transfers call to a queue
Im closing the Thrad!

 

[PanagiotisL_3CX]

@VUSALDADASHOV

You are welcome, we're glad we could help.