Hello,
Currently, I faced an issue in setting up the outbound call from Freeswitch to PSTN via Dinstar GSM Gateway.
My question is there any other configuration I would have to follow to make it works? Please kindly give advises.
I follow this Freeswitch Dinstar How-To Guide. Since the tutorial is not working for the outbound call to PSTN, I followed the DWG_WITH_FREESWITCH.pdf instead. Unfortunately, both of them not working for me with outbound calls.
I tried with the following configuration:
1. With Dinstar GSM Gateway IP
 <extension name="dwg2008_gateway">
   <condition field="destination_number" expression="^0(\d+)$">
   <action application="answer"/>
   <action application="set" data="ringback=${us-ring}"/>
   <action application="log" data="INFO calling via gateway to 0$1"/>
   <action application="bridge" data="sofia/internal/0$1@192.168.7.137"/>
  </condition>
</extension>
But this is not working, I got NORMAL_TEMPORARY_FAILURE.
Please see the dinstar log named setup_1.log

2. With GSM
<extension name="dwg2008_gateway">
   <condition field="destination_number" expression="^0(\d+)$">
   <action application="answer"/>
   <action application="set" data="ringback=${us-ring}"/>
   <action application="log" data="INFO calling via gateway to 0$1"/>
   <action application="bridge" data="sofia/gateway/gsm/0$1"/>
   </condition>
</extension>
This is not working as well, I got NORMAL_TEMPORARY_FAILURE.
Please see the dinstar log named setup_2.log
NB. The DID from PSTN to Freeswitch via Dinstar GSM gateway is working fine normal audio.
I am able to provide the configuration of dinstar gateway as well if you might want to see it.

Any solution would be really appreciated.

Best regards,
Chhorm Chhatra