DTMF for BE

Hello
Or configuration: CCM 4.2 + gateway 2811 (BRI)
When we call a number which requires a choice in a menu, that does not function (example "Press 2 for French")
I think that it is a problem of DTMF.
I have download the Locale Installer to install BE
In the gateway, I have this configuration:
Voice-Port 0/0/0
Compand-type a-law
cptone C1
ccm-manager download-tones
When I do show ccm-manager download-tones I have BE for C1
A thing which appears odd it to me is that when I make Show ccm-manager download-tones C1, the PCM is u-law. In Europe one is in a-law
You have an idea?

Hi
Assuming you are using MGCP, you need the following command to pass DMTF.
Mgcp dtmf-relay voip codec all mode cisco
Regards
Aaron
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DTMF not functioning

Dear All,
We have the call center with following components
IPCC 7.0 Hosted Edition
CVP 3.1
AS535XML (Ingress/VXML)
Suddently our call center having some issue with caller enter digit
if customer enter 44884000 its come to my ICM/CVP self-service as 44888400 or sometimes 44488400 or sometimes correctly.
We have restarted the Voicegateway also but no luck. We have restarted CVP Call server, CVP vxml server still we have issues with DTMF inputs, it is affecting our call center self-service very badly.
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with Regards,
Manivannan

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debug voip rtp session
debug ccsip message
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a) Good Call
The Calling number is 44251103, and the called number is 114, that is translated to 8897. The digits Entered are
2,1,1,1,5,5,5,7,7,6,3,0,#,2,8,1,3,5,6,0,0,1,8,2,# and ended the call
Conclusion:
We are able to identify all these digit input in this logs. This call is made from the Landline PSTN here and we are not facing on any calls made using the landline.
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The calling numbers is 55577630 (3G mobile Number) and the called number is 114, translated to 8897. The digits entered are
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Need information for how to capture, transmit and receive a DTMF tone

Hello every body
I would like to implements the DTMF where i need some information that hoe i can
1) Capture the tone mean when i press button 'one' it has to capture and generate a vaoice file.
2) And i need to transmit the same thing to a remote system.
3) At the remote system how i can reveive and identify that the tone is for 'one'.
Thanks to ............. advance
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JMF isn't the right tool - it's about handling media streams
You could use it to capture the audio source, then obtain the audio samples,
But you would then have to perfom some signal processing on it to interpret/decode for tone detection
This is what should already be available via the JTAPI API (haven't checked but should do this sort of thing)
ie you should be able to code up an application that receives 'DTMF Tone' events & does whatever you need to do in response
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Need information for how to Capture, Transmit, and Identify a DTMF tone

Hello every body
I would like to implements the DTMF where i need some information that hoe i can
1) Capture the tone mean when i press button 'one' it has to capture and generate a vaoice file.
2) And i need to transmit the same thing to a remote system.
3) At the remote system how i can reveive and identify that the tone is for 'one'.
Thanks to ............. in advance
Sreenath Kulkarni

JMF isn't the right tool - it's about handling media streams
You could use it to capture the audio source, then obtain the audio samples,
But you would then have to perfom some signal processing on it to interpret/decode for tone detection
This is what should already be available via the JTAPI API (haven't checked but should do this sort of thing)
ie you should be able to code up an application that receives 'DTMF Tone' events & does whatever you need to do in response
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Get the correct order of the tones for DTMF Decoder

I am trying to decoder the DTMF stream signal (contains mutiple tones, delay, noise), however, I have the problem to seperate each tone in the stream signal in order to input into the Goertzel for further analysis.
The phone number is 534-343-3436. At the input decoder, I do not know what is the phone number yet. However, I want to seperate 5 then 3 then 4 then 3....tone so I can put do the analysis on individual tone to know which tone is coresponding to what phone number.
Anyway I can archieve in LabView?
Solved!
Go to Solution.

There should always be an interval of no signal between tone pairs - otherwise you could not detect repeated values. For phone number 534-343-3333 you cannot just look for a change of frequency. Your signalling protocol must specify the minimum duration of a tone pair to be considered a valid signal and a minimum duration of no tone to be a valid separator between numerals. Maximum times are useful but not as important, except to determine how long the system will wait for a valid number. The time settings may be dependent on the minimum tolerable signal to noise ratio.
So the algorithm would be something like this: Use amplitude discrimination to find the gaps between tone pairs. It does not need to be too good - it only needs to find approximate segments.It will use the timing specifications to set ranges of times to examine. Within each segment above threshold use the FFT to identify the tone pair. You could also use an FFT on the gap segments to verify that they do not contain a tone pair.
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DTMF doesn't work for outbound call

We currently using UC520 and having strange problem. When we call through SIP for outbound call DTMF tone is not transmitting. and if I press multiple numbers with longer duration, It makes continuous tone on the other hand.
My current dialpeer uses DTMF relay RTP- NTE. I will attach sh run and debug ccsip message file. please help me this is being quite critical.

Seems like your SIP Trunk Service provider is not getting the RFC2833 packets or not interpreting them correctly.
I see on the log that you pressed 1, 2 & 3 and the UC520 sends all these digits out (each digit will have 7 packets - this post explains how to read this debug - https://www.myciscocommunity.com/message/14045#14045). So I know its not the UC520 - below is a snip for digit 1
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B86 timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1      Pkt:04 00 00 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B87 timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:04 00 00 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B88 timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:04 00 00 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B89 timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:04 01 90 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B8A timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:84 03 20 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B8B timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:84 03 20 >>
Sep 10 16:26:26.114:          s=DSP d=VoIP payload 0x65 ssrc 0x15FE9166 sequence 0x4B8C timestamp 0xBCB7190A
Sep 10 16:26:26.114:          Pt:101    Evt:1       Pkt:84 03 20 >>
In terms of next steps:
- Is there any router or NAT or firewall device between the UC520 WAN interface and the SIP Trunk service provider? If so maybe good to check if you can bypass this device or if this device blocks RFC2833 packets
- Ask the SIP Trunk SP what they see on their end for the RFC2833 packets - you can send them a wireshark capture off the UC500 WAN port if that is more convincing than a debug log. Who is the SP by the way?

CVP DTMF recognition for alphabets

hi all,
I need to recognize alphabets via DTMF. For examples users need to AFXPK, ACKPN etc. when then reach the IVR to provide certain codes.
These codes are then used to pick up information from database and proved the CTI data for agents.
Can any one share ideas on how it may be achieved.
We use CVP/VXML on UCCE 9.x.. ASR is not an option now.
Thanks,
Dilip

Thanks David, thats what i thought I didnt think it came preloaded with software on the cvp to roll out voice recognition without the use of an asr.

TC software support for DTMF letter values

Hi!
Got a question that I can't find a documented answer for. On endpoints running any version of TC software, is there any way to get the endpoint to generate the DTMF tones for A, B, C, or D?
My gut feeling is no, if only because the graphical DTMF pad does not have those buttons (only 0-9, *, #). The reason for asking is a customer is trying to call into an AT&T bridge which has one of those letters in the PIN.
Thanks!

Hi Wayne,
Thanks for the answer. After reading it I realized I hadn't actually tried sending a letter DTMF. The perils of internet research I suppose. ;-) Looking in the logs of my endpoint I saw that I was receiving the letter DTMF from the endpoint I was connected to.
2015-02-19T08:13:50.499-08:00 ppc appl[2785]: 1424.41 H323Call I: h323_call_handler::handleH323DtmfInd(p=2, s=1): Incoming DTMF
2015-02-19T08:13:50.501-08:00 ppc appl[2785]: 1424.42 MainEvents I: DTMFReceived(p=2) 'A'
Thanks again!

DTMF for BE

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