[Freeswitch-users] spandsp_start_dtmf detects # key many times

Thu Jan 22 14:23:53 MSK 2015

Yes.. Thanks. It works.

On Tue, Jan 20, 2015 at 7:26 PM, Michael Jerris <mike at jerris.com> wrote:

> Which phone is it?  look for a checkbox about force 2833 out of band dtmf.
>
>
> On Jan 20, 2015, at 2:54 AM, Nagalenoj H. <nagalenoj at gmail.com> wrote:
>
> My phone does not have an option to select RFC2833.
>
> On Tue, Jan 20, 2015 at 12:37 PM, <covici at ccs.covici.com> wrote:
>
>> Why not use rfc2833 instead?
>>
>> Nagalenoj H. <nagalenoj at gmail.com> wrote:
>>
>> > When I changed the Aastra phone settings to use SIP INFO, am not facing
>> > this issue. But, when I change it to use RTP for DTMF, then '#' is
>> getting
>> > detected more times.
>> >
>> > I did a pcap and listened to the audio, I could hear only one tone(beep)
>> > for each key pressed. Is there anything other configuration to get it
>> > working in RTP?
>> >
>> > On Mon, Jan 19, 2015 at 10:40 PM, Michael Jerris <mike at jerris.com>
>> wrote:
>> >
>> > > If you are using a sip phone, you are MUCH better off using non audio
>> > > based dtmf like rfc-2833.  If you are already using this, its
>> possible that
>> > > what is happening is the phone is sending the dtmf as audio and 2833,
>> at
>> > > which point, you should not have to use spandsp_start_dtmf at all.
>> If the
>> > > phone is sending only audio, and is not capable of using any other
>> method,
>> > > you will need to pull a pcap of this call, use wireshark to extract
>> the
>> > > audio, and do some analysis of the audio to figure out why it is
>> detecting
>> > > multiple digits.
>> > >
>> > >
>> > > On Jan 19, 2015, at 4:38 AM, Nagalenoj H. <nagalenoj at gmail.com>
>> wrote:
>> > >
>> > > Hi,
>> > >
>> > > When I use spandsp_start_dtmf along with play_and_get_digits, '#' is
>> > > getting detected many times, though it is pressed once.
>> > >
>> > > Other DTMFs are getting detected properly, whereas the '#' is getting
>> > > detected 2 or 3 times.
>> > >
>> > > I have checked the SIP phone's settings, I do not find anything wrong
>> > > there.
>> > >
>> > > What could be the reason? Is this because of some SIP phone setting?
>> Here
>> > > is the freeswitch log,
>> > >
>> > > 2015-01-19 09:33:39.671681 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [1]
>> > > 2015-01-19 09:33:39.671681 [DEBUG] switch_channel.c:488 RECV DTMF
>> 1:2000
>> > > 2015-01-19 09:33:39.851686 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [1], duration = 191 ms
>> > > 2015-01-19 09:33:40.071688 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [4]
>> > > 2015-01-19 09:33:40.071688 [DEBUG] switch_channel.c:488 RECV DTMF
>> 4:2000
>> > > 2015-01-19 09:33:40.251687 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [4], duration = 153 ms
>> > > 2015-01-19 09:33:40.431699 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [7]
>> > > 2015-01-19 09:33:40.431699 [DEBUG] switch_channel.c:488 RECV DTMF
>> 7:2000
>> > > 2015-01-19 09:33:40.631680 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [7], duration = 204 ms
>> > > 2015-01-19 09:33:40.851688 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [4]
>> > > 2015-01-19 09:33:40.851688 [DEBUG] switch_channel.c:488 RECV DTMF
>> 4:2000
>> > > 2015-01-19 09:33:40.971695 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [4], duration = 127 ms
>> > > 2015-01-19 09:33:41.151691 [DEBUG] switch_core_session.c:1053 Send
>> signal
>> > > sofia/internal/sip:278 at 192.168.2.86:5060 [BREAK]
>> > > 2015-01-19 09:33:41.171701 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [7]
>> > > 2015-01-19 09:33:41.171701 [DEBUG] switch_channel.c:488 RECV DTMF
>> 7:2000
>> > > 2015-01-19 09:33:41.351680 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [7], duration = 191 ms
>> > > 2015-01-19 09:33:41.371686 [DEBUG] switch_ivr_play_say.c:1314 Codec
>> > > Activated L16 at 8000hz 1 channels 20ms
>> > > 2015-01-19 09:33:41.691686 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [#]
>> > > 2015-01-19 09:33:41.691686 [DEBUG] switch_channel.c:488 RECV DTMF
>> #:2000
>> > > EXECUTE sofia/internal/392 at 3427.vbiz.mundio.com flush_dtmf()
>> > > 2015-01-19 09:33:41.691686 [DEBUG] switch_ivr_play_say.c:1314 Codec
>> > > Activated L16 at 8000hz 1 channels 30ms
>> > > 2015-01-19 09:33:41.711684 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [#], duration = 38 ms
>> > > 2015-01-19 09:33:41.771683 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [#]
>> > > 2015-01-19 09:33:41.771683 [DEBUG] switch_channel.c:488 RECV DTMF
>> #:2000
>> > > 2015-01-19 09:33:41.771683 [DEBUG] switch_ivr_play_say.c:1747 done
>> playing
>> > > file
>> file_string:///root/united_fone/voice_files/en//CR_enter_conf_pin.wav
>> > > 2015-01-19 09:33:41.771683 [DEBUG] switch_ivr_play_say.c:1314 Codec
>> > > Activated L16 at 8000hz 1 channels 30ms
>> > > 2015-01-19 09:33:41.811686 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [#], duration = 25 ms
>> > > 2015-01-19 09:33:41.871691 [DEBUG] mod_spandsp_dsp.c:373 DTMF BEGIN
>> > > DETECTED: [#]
>> > > 2015-01-19 09:33:41.871691 [DEBUG] switch_channel.c:488 RECV DTMF
>> #:2000
>> > > 2015-01-19 09:33:41.951681 [DEBUG] mod_spandsp_dsp.c:385 DTMF END
>> > > DETECTED: [#], duration = 76 ms
>> > >
>> > >
>> > >
>>
>
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-- 
Regards,
Nagalenoj H.
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