[Freeswitch-users] spandsp_start_dtmf detects # key many times

[Nagalenoj H.]

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


-- 
Regards,
Nagalenoj H.
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