[Freeswitch-users] No audio when calling in via SIP phone

[Iqbal Abdullah]

On 29 July 2014 21:54, Ben Langfeld <ben at langfeld.co.uk> wrote:
> Try explicitly answering the call before your <Speak/> action.

Thanks Ben,

I'm sorry but I do not see any explicit answer XML tag which I can use
for Plivo.
What do you mean by explicitly answering the call before the Speak action?

>
>
> On 29 July 2014 07:04, Iqbal Abdullah <iqbal.b.abdullah at gmail.com> wrote:
>>
>> Hello everyone,
>>
>> I have just gotten to know about FreeSWITCH and have tried installing
>> it on a EC2 instance and in the process of trying out some examples. I
>> am facing this issue of not being able to hear any sounds during a
>> call I make to my FreeSWITCH system.
>>
>> My freeswitch system is the latest stable ver.1.4 and I followed the
>> instructions to install from
>> http://clintberry.com/2011/getting-started-with-plivo/
>>
>> via the installation script show on the site. I changed the
>> installation script to use Slash and also 1.4 instead.
>>
>> One of the exercises is to pass an incoming call to plivo and make
>> plivo return a <say> action, which for some reason is not reading back
>> the text to me (no audio) when I call 1005 from using sflphone on my
>> ubuntu.
>>
>> This is the log on freeswitch:
>>
>> 2014-07-29 18:01:12.581530 [NOTICE] switch_channel.c:1054 New Channel
>> sofia/internal/1000 at xxxxxxxxxx.amazonaws.com
>> [5650b3dd-1519-4c6f-b720-d4d3a8a65c5c]
>> 2014-07-29 18:01:12.681534 [INFO] mod_dialplan_xml.c:558 Processing
>> 1000 <1000>->1005 in context default
>> 2014-07-29 18:01:12.681534 [WARNING] switch_core_session.c:1554
>> sofia/internal/1000 at xxxxxxxxxx.amazonaws.com using scheduler due to
>> bypass media or media is not established.
>> 2014-07-29 18:01:12.733800 [NOTICE] sofia_media.c:92 Pre-Answer
>> sofia/internal/1000 at xxxxxxxxxx.amazonaws.com!
>> 2014-07-29 18:01:12.733800 [NOTICE] mod_dptools.c:1258 Channel
>> [sofia/internal/1000 at xxxxxxxxxx.amazonaws.com] has been answered
>> 2014-07-29 18:01:14.121516 [NOTICE] mod_dptools.c:1232 Hangup
>> sofia/internal/1000 at xxxxxxxxxx.amazonaws.com [CS_RESET]
>> [NORMAL_CLEARING]
>> 2014-07-29 18:01:14.141502 [NOTICE] switch_core_session.c:1632 Session
>> 1 (sofia/internal/1000 at xxxxxxxxxx.amazonaws.com) Ended
>> 2014-07-29 18:01:14.141502 [NOTICE] switch_core_session.c:1636 Close
>> Channel sofia/internal/1000 at xxxxxxxxxx.amazonaws.com [CS_DESTROY]
>>
>> I can see that plivo is correctly calling the XML I have placed, as
>> this is the log I see on my web server:
>>
>> [29/Jul/2014 01:59:13] "GET
>>
>> /answer/?To=1005&Direction=inbound&From=1000&CallerName=1000&CallUUID=b74c06be-f4e9-4830-af68-e424b3b31e1c&CallStatus=ringing
>> HTTP/1.1" 200 93
>> [29/Jul/2014 01:59:14] "GET
>>
>> /answer/?To=1005&Direction=inbound&From=1000&CallUUID=b74c06be-f4e9-4830-af68-e424b3b31e1c&HangupCause=NORMAL_CLEARING&CallStatus=completed
>> HTTP/1.1" 200 93
>>
>> This is the XML I have prepared to test plivo:
>>
>> <?xml version="1.0" encoding="UTF-8" ?>
>> <Response>
>>   <Speak>Hello World</Speak>
>> </Response>
>>
>>
>> And this is default.xml on freeswitch which forward any calls to 1005 to
>> plivo:
>>
>> <include>
>>   <context name="default">
>>
>>     <!--
>>      This extension allows calling any digits of number
>>      freeswitch will call plivo outbound server on every incoming call
>>     -->
>>     <extension name="plivo">
>>         <condition field="destination_number" expression="^1005">
>>             <action application="enable_heartbeat" data="60"/>
>>             <action application="socket" data="127.0.0.1:8084 async
>> full"/>
>>         </condition>
>>     </extension>
>> ....
>> ....
>> </include>
>>
>> I have read that NAT issues might be causing a no-audio issue, but I
>> am not sure and do not know how to tell if this is the issue. The only
>> thing which look strange is the logs on freeswitch saying:
>>
>> 2014-07-29 18:01:12.681534 [WARNING] switch_core_session.c:1554
>> sofia/internal/1000 at xxxxxxxxxx.amazonaws.com using scheduler due to
>> bypass media or media is not established.
>>
>> but what does that mean?
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
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>>
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>
>
>
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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