Outbound calls - all circuits are busy

[lele]

Hi, I have a FreePBX (RasPBX) connected to a Grandstream HT813 gateway. I was able to setup a CHAN_SIP trunk and getting inbound calls to FreePBX IVR.
I am struggling with outbound calls, when I try I get:

VERBOSE[31726][C-00000012] app_dial.c: Called SIP/XXXXXXXXXX/YYYYYYYYYY

WARNING[20398][C-00000012] chan_sip.c: Received response: “Forbidden” from ‘<sip:[email protected]:5160>;tag=as27f29f8b’

VERBOSE[31726][C-00000012] app_dial.c: Everyone is busy/congested at this time (1:0/0/1)

Any hint on how to debug this?

Thanks,
Daniele

[Stewart1 (Stewart)]

Confirm that on the FXO page, Stage Method is set to 1 and Dial Plan allows what you are sending (the default should be fine).

If that’s not your issue, post screenshotd of your FXO page.

[Stewart1 (Stewart)]

These all default to No, but turning one or more on might cause your symptom:

Validate Incoming SIP Message
Check SIP User ID for Incoming
Authenticate Incoming INVITE

[lele]

Setting stage method to 1 results solves the above WARNING:

4432 [2021-01-26 07:25:02] VERBOSE[7558][C-00000015] app_dial.c: Called SIP/XXXXXXXXXX/YYYYYYYYY
4433 [2021-01-26 07:25:12] VERBOSE[20398][C-00000015] chan_sip.c: Got SIP response 503 “Service Unavailable” back from 192.168.1.92:5062
4434 [2021-01-26 07:25:12] VERBOSE[7558][C-00000015] app_dial.c: SIP/XXXXXXXX-0000000b is circuit-busy
4435 [2021-01-26 07:25:12] VERBOSE[7558][C-00000015] app_dial.c: Everyone is busy/congested at this time (1:0/1/0)

But now have a 503 “Service Unavailable”. I will check the FreePBX settings.

Thanks,
Daniele

[lele]

These:

Validate Incoming SIP Message
Check SIP User ID for Incoming
Authenticate Incoming INVITE

Are all set to no.

[lele]

Here are the screenshot of the FXO settings:

[Stewart1 (Stewart)]

Set Wait for Dial-Tone to No and restest.

[lele]

This solved the issue. I had to restart both HT-813 and FreePBX to get it working.

Thank you!

Daniele