no progress or ringing tone on the caller side after IVR Menu

[zhtway dhamma]

Hello,
I am new here. I have just setup Cloud PBX for testing. With Local SBC and several IP phones.
Calls from external number (through IVR) or internal extension ring on the calling phone but there is no ringing tone/ progress tone (feed back) on the caller side.
It is just like muted.
IVR responses correctly and after IVR, during connecting to (ringing) the extension it is silent on the caller side and voice mail message comes up after 30 seconds or so.

If calling out to any phones from the extensions, there is a progress tone.

Any idea how to fix it.
Much appreciated.

Edited: I think it is not a progress tone. The MOH is not playing after the IVR. Those wav files are playing before and also those can be played back on the extension.
I don't know why it is not playing during the call in.

 

[leejor]

Have you modified / use custom MOH files?
https://www.3cx.com/community/threads/cant-hear-music-on-hold-or-ringing-of-extensions.62971/

 

[zhtway dhamma]

Have you modified / use custom MOH files?
https://www.3cx.com/community/threads/cant-hear-music-on-hold-or-ringing-of-extensions.62971/

I have been using those and running properly (custome wav or system wav files). But all of a sudden, now all of wav files are not playing. but it can be heard when you play it to the extension from system. It is weird or a glitch some where. the system was rebooted several times already.

 

[zhtway dhamma]

Found the solution. Have to remove SIP Trunk > Option > Support Re-invite