Re: [hylafax-users] voice prompt playback before DTMF read?

["Ivan Petrov" <ivanp@xxxxxxxxxxxxx>]

Hi Lee,

Today I tried the latest HylaFAX 4.2.5 and I got the following error report 
in /var/log/messages:

Jan 30 12:56:51 faxserver FaxGetty[10681]: Unknown AT escape code "play:1"
Jan 30 12:56:51 faxserver FaxGetty[10681]: OPEN /dev/ttyS4  HylaFAX (tm) 
Version 4.2.5
Jan 30 12:57:00 faxserver FaxGetty[10681]: MODEM LT V.92 1.0 MT5634ZPX-PCI-U 
INTERNAL DATA/FAX/VOICE MODEM VERSION 1.32K LT V.92 1.0 MT5634ZPX-PCI-U 
Internal Data/Fax/Voice Modem Version 1.32k/

And of course I don't hear the voice prompt.
Did play command make it to the production release (<play:1> command) or I 
have to use the development release?

Regards,
Ivan

----- Original Message ----- 
From: "Ivan Petrov" <ivanp@xxxxxxxxxxxxx>
To: "Lee Howard" <faxguy@xxxxxxxxxxxxxxxx>
Cc: <hylafax-users@xxxxxxxxxxx>
Sent: Wednesday, January 04, 2006 4:31 PM
Subject: Re: [hylafax-users] voice prompt playback before DTMF read?


> Thanks for the great answer Lee!
>
> About my qestion 1) - The hylafax version I'm using is 
> hylafax-4.2.3-1rhel3 (got it as precompiled RPM). I assume this is 4.2.3.1 
> you are refering to, so DTMF timeout feature should be in (as well as the 
> voice - right?).
> What happens when I try to send fax not entering the expected DTMF 
> sequence is - hylafax answers, fax tones are definitely heard (fax 
> request), but after about 30 seconds hylafax hangs up. Log file follows:
>
> Jan  4 16:25:29 faxserver FaxGetty[2692]: ANSWER: Call ID 1 "4161111111"
> Jan  4 16:25:29 faxserver FaxGetty[2692]: ANSWER: Call ID 2 "xxxxxxxxxxxx"
> Jan  4 16:25:29 faxserver FaxGetty[2692]: ANSWER: Call ID 3 ""
> Jan  4 16:25:48 faxserver FaxGetty[2692]: MODEM LT V.92 1.0 
> MT5634ZPX-PCI-U INTERNAL DATA/FAX/VOICE MODEM VERSION 1.32K LT V.92 1.0 
> MT5634ZPX-PCI-U Internal Data/Fax/Voice Modem Version 1.32k/
>
> The config file I'm using is:
>
> CountryCode:            1
> AreaCode:               416
> FAXNumber:              +1.416.111.1111
> LongDistancePrefix:     1
> InternationalPrefix:    011
> DialStringRules:        etc/dialrules
> ServerTracing:          1
> SessionTracing:         11
> RecvFileMode:           0600
> LogFileMode:            0600
> DeviceMode:             0600
> SpeakerVolume:          yes
> GettyArgs:              "-h %l dx_%s"
> LocalIdentifier:        FAX
> TagLineFont:            etc/lutRS18.pcf
> TagLineFormat:          "From %%l|%c|Page %%P of %%T"
> MaxRecvPages:           25
> #
>
> ModemType:              Class1          # use this to supply a hint
> ModemFlowControl:       rtscts          # many firmwares have broken 
> software flow control
> Class1TMConnectDelay:   400             # counteract quick CONNECT 
> response
>
> # If your line supports Caller-ID, you may want to uncomment this...
> ModemResetCmds: AT+VCID=1
> CallIDPattern:  "NMBR="
> CallIDPattern:  "NAME="
> RingsBeforeAnswer:      2
>
> CallIDPattern:          SHIELDED_DTMF
> CallIDAnswerLength:     4
> ModemRingResponse:      AT+FCLASS=8;H1
> ModemAnswerCmd:         <delay:100>AT+FCLASS=1;A
>
> Regards,
> Ivan
>
>
> ----- Original Message ----- 
> From: "Lee Howard" <faxguy@xxxxxxxxxxxxxxxx>
> To: "Ivan Petrov" <ivanp@xxxxxxxxxxxxx>
> Cc: <hylafax-users@xxxxxxxxxxx>
> Sent: Wednesday, January 04, 2006 4:12 PM
> Subject: Re: [hylafax-users] voice prompt playback before DTMF read?
>
>
> > Ivan Petrov wrote:
> >
> > > I am trying to implement DTMF recognition in order to better route 
> > > inbound faxes. So far I managed to get HylaFAX to wait and read the DTMF 
> > > response.
> > > What happens is modem picks up, waits for the DTMF entry then receives 
> > > the fax,  Notification email after fax is received contains CallID3 
> > > entry with the DTMF responce entered, which is exactly what should be 
> > > happening. This is great. However - if sending party does not enter the 
> > > necessary count of DTMF digits hylafax closes the connection without 
> > > receiving a fax.
> >
> >
> > Yes, I am very familiar with the situation.
> >
> > > I have two questions:
> > >
> > > 1) Is it possible after specific time-out fax to be received no matter 
> > > DTMF has not been entered?
> >
> >
> > Yes.  (See below...)
> >
> > > 2) Is it possible to playback a greeting uppon line is answered to 
> > > prompt sender to punch the x-digit code before submit?
> >
> >
> > Yes.
> >
> > Both of these features were added to HylaFAX 4.2.3.1 (found at 
> > http://hylafax.sourceforge.net) and are now also available in 4.2.4.1.
> >
> > The time-out part is not currently configurable (it's hard-coded at like 
> > 10 seconds if I remember correctly), but it will automatically bypass 
> > DTMF detection if fax tones are heard.  In those cases the CallID for 
> > SHIELDED_DTMF will be whitespace for however many number of digits the 
> > answer-length is (i.e. "    ").
> >
> > The voice part is a bit more tricky.  The man page says this about the 
> > new "play" command-escape-string feature:
> >
> > -----------------------------------------
> > The "<play:C>" escape can be used to play a raw audio file with a voice 
> > modem.  The files are named etc/playC.raw where "C" is any character. 
> > This feature can be used, for example, to play a brief audio message 
> > after picking up the line but before answering.  A configuration example 
> > may be:
> >
> >   ModemRingResponse: 
> > "AT+FCLASS=8;H1\nAT+VSM=131\nAT+VLS=1\nAT+VTX\n<waitfor:CONNECT><play:1><waitfor:OK>AT+VTS=[933,,150]"
> >   ModemAnswerCmd:     "<delay:100>AT+FCLASS=1;A"
> >   CallIDPattern:      SHIELDED_DTMF
> >   CallIDAnswerLength: 4
> >
> > In this example using an IS-101 voice-compliant modem, a RING indication 
> > from the modem will cause the modem to be placed in voice mode, set ulaw 
> > audio compression, and via the connected phone line play back the 
> > etc/play1.raw audio file, which may say, "After the tone enter a 
> > four-digit extension, then start the fax."  Following the message a tone 
> > is played.
> > -----------------------------------------
> >
> > The reason this is "tricky" is because you have to develop that 
> > ModemRingResponse yourself based on your modem commands per your manual 
> > and you have to generate that etc/play1.raw file yourself based on the 
> > settings used in that ModemRingResponse.
> >
> > I developed that example with a MultiTech MT5634ZBA-V92, so chances are 
> > good that it will work for you also.  However, I'd recommend first start 
> > testing without the "<play:1>" part (which, when omitted, will work with 
> > any version of HylaFAX).  You'll not get any voice prompt, but you will 
> > get a "beep" tone, and that will tell you that things are working up to 
> > that point.
> >
> > Generally, to generate the etc/playC.wav file you'd take any regular WAV 
> > file that you want to be your voice prompt and then you would use 
> > something like sox to convert it into raw digital audio, probably 
> > slinear, uLaw, or aLaw at 8000KHz or something.  The "format" of the raw 
> > audio data in that file that you use will depend on the commands you use 
> > in the ModemRingResponse.  In this case the governing command is 
> > "AT+VSM=131" which is explained by "AT+VSM=?" to be 8-bit uLaw at 
> > 8000KHz.  So the sox command would be something like this:
> >
> >  sox your_file.wav -U -b -r 8000 -c 1 play1.raw
> >
> > Then you copy that play1.raw file to /var/spool/hylafax/etc/, and then 
> > you'd add the "<play:1>" part to the ModemAnswerCmd, restart faxgetty, 
> > and then try it again.
> >
> > Hope this helps,
> >
> > Lee.
> >
> >
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