Vega 3050G distingtive ringtone, alert-info issue

Hi everyone and welcome (my first post)!

Enviroment is:
IP PBX in this system is 3CX Phone System,
IP Phones are Snom devices,
IP Gateways are Sangoma Vega 3050G

I have problem with Vega 3050G Gateways to get different ringers for external calls and all other calls.
I followed Vega manual for alert-info but without any result.

My PBX (3CX) is sending:

  1. not sending Alert-Info for internal calls

  2. for external calls is sending Alert-Info: <http://127.0.0.1>;info=external

  3. for queue calls is sending Alert-Info: <http://127.0.0.1>;info=queue

There is no problem with distingtive ringtones on IP Phones but Vega looks like it has problem to recognize alert-info message.

Here is part of SIP TRACE:
SIP m:0060593 0650 00607<-- UA RX — From UDP(8):10.1.1.58:5060
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.1.1.58:5060;branch=z9hG4bK-524287-1—f17920074a2d965f;rport
Max-Forwards: 70
Contact: <sip:[email protected]:5060>
To: <sip:[email protected]>
From: “XXXXXXXXX”<sip:[email protected]:5060;nf=e>;tag=6a14336e
Call-ID: xUmo6sKCaC2-VK0dFun3Ag…
CSeq: 1 INVITE
Alert-Info: <http://127.0.0.1>;info=external
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE, UPDATE
Content-Type: application/sdp
Supported: replaces, timer
User-Agent: 3CXPhoneSystem 15.5.15502.6 (15502)
Content-Length: 411

and below part of Vega config:
purge ._advanced.pots.ring
cp ._advanced.pots.ring.1
set ._advanced.pots.ring.1.frequency=“50”
set ._advanced.pots.ring.1.name=“internal”
set ._advanced.pots.ring.1.repeat=“1”
set ._advanced.pots.ring.1.ring1_on=“400”
set ._advanced.pots.ring.1.ring1_off=“200”
set ._advanced.pots.ring.1.ring2_on=“400”
set ._advanced.pots.ring.1.ring2_off=“4000”
set ._advanced.pots.ring.1.ring3_on=“0”
set ._advanced.pots.ring.1.ring3_off=“0”
cp ._advanced.pots.ring.2
set ._advanced.pots.ring.2.frequency=“50”
set ._advanced.pots.ring.2.name=“external”
set ._advanced.pots.ring.2.repeat=“1”
set ._advanced.pots.ring.2.ring1_on=“1000”
set ._advanced.pots.ring.2.ring1_off=“4000”
set ._advanced.pots.ring.2.ring2_on=“0”
set ._advanced.pots.ring.2.ring2_off=“0”
set ._advanced.pots.ring.2.ring3_on=“0”
set ._advanced.pots.ring.2.ring3_off=“0”

Any idea why it is not working?

It’s better to make support ticket on Sangoma portal.