Hi,

I want to make calls forwarded from GSM gateway to Freeswitch extension

When I dial a 10- digit mobile number of a sim configured in the GSM gateway in a way that it forwards the incoming call to freeswitch extension. I do not hear anything except for some background noise

Freeswitch codec configuration :

 <X-PRE-PROCESS cmd="set" data="global_codec_prefs=GSM,PCMU,PCMA"/>

<X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=GSM,PCMU,PCMA"/>

GSM- Gateway Codec settings :

priority 1 - G.711 u-law

priority 2 - G.711 a-law

Dialplan in public context :

<include>

  <extension name="public_did">

    <condition field="destination_number" expression="^(9811806537)$">

        <action application="transfer" data="5000 XML default"/>

    </condition>

  </extension>

</include>

Freeswitch logs:

2016-06-07 05:10:51.000656 [NOTICE] switch_channel.c:1055 New Channel sofia/external/00919716517818@192.168.20.36:5060 [33e4e958-2c6e-11e6-9af0-278859dd14e6]

2016-06-07 05:10:51.000656 [INFO] mod_dialplan_xml.c:635 Processing 00919716517818 <00919716517818>->9811806537 in context public

2016-06-07 05:10:51.000656 [NOTICE] switch_ivr.c:1861 Transfer sofia/external/00919716517818@192.168.20.36:5060 to XML[5000@default]

2016-06-07 05:10:51.000656 [INFO] mod_dialplan_xml.c:635 Processing 00919716517818 <00919716517818>->5000 in context default

2016-06-07 05:10:51.000656 [NOTICE] sofia_media.c:92 Pre-Answer sofia/external/00919716517818@192.168.20.36:5060!

2016-06-07 05:10:51.000656 [NOTICE] mod_dptools.c:1268 Channel [sofia/external/00919716517818@192.168.20.36:5060] has been answered

2016-06-07 05:10:51.640675 [INFO] switch_rtp.c:5846 Auto Changing port from 192.168.20.36:31012 to 103.25.231.101:31012

2016-06-07 05:11:06.560680 [NOTICE] sofia.c:952 Hangup sofia/external/00919716517818@192.168.20.36:5060 [CS_EXECUTE] [NORMAL_CLEARING]

2016-06-07 05:11:06.560680 [NOTICE] switch_core_session.c:1641 Session 262 (sofia/external/00919716517818@192.168.20.36:5060) Ended

2016-06-07 05:11:06.560680 [NOTICE] switch_core_session.c:1645 Close Channel sofia/external/00919716517818@192.168.20.36:5060 [CS_DESTROY]

Regards,

Deepika

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