[Freeswitch-users] Received DTMF not available

[Grant Bagdasarian]

Hello,

I'm originating calls from Freeswitch to remote destinations.
When the destination answers the call (wait_for_answer) I ask the destination for some digits.

        <action application="play_and_get_digits" data="6 8 2 5000 # ${prompts_directory}/ask_and_collect.wav ${prompts_directory}/invalid.wav dtmfInput \d 2500"/>

        <action application="set" data="api_hangup_hook=jsrun $${scripts_directory}/collect_data.js ${internal_reference} DTMFInput=${dtmfInput}"/>

        <action application="log" data="INFO The caller entered the following code for verification: ${dtmfInput}" />

It happens quite often where the variable $[dtmfInput} doesn't have a value, even though I see the console output in Freeswitch receiving the DTMF events.
2014-05-14 13:29:26.316614 [DEBUG] switch_rtp.c:3901 RTP RECV DTMF 3:2880
2014-05-14 13:29:26.316614 [DEBUG] switch_channel.c:471 RECV DTMF 3:2880
2014-05-14 13:29:26.956611 [DEBUG] switch_rtp.c:3901 RTP RECV DTMF 1:2880
2014-05-14 13:29:26.956611 [DEBUG] switch_channel.c:471 RECV DTMF 1:2880

I'm using RFC2833 mode.

Any ideas why this happens?

Regards,

Grant
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