[asterisk-users] Detected digit 'f' - SOLVED

[Kingsley Tart]

On Tue, 2010-01-26 at 13:17 -0600, Kevin P. Fleming wrote:
> Jeff Brower wrote:
> 
> > How do you know for sure fax detection is turned off?  It sounds to me like your changes to the dahdi config file are
> > being ignored.  Maybe put something in there that should cause an error or something clearly observable, then see
> > whether that actually occurs.
> 
> Or even easier, use 'dahdi show channel <X>' and see if faxdetect is
> indeed disabled.

Hi,

Thanks for the tip - I've learnt a new Asterisk command :)

According to that it was already off (output at bottom).

However, something (can't remember what) made me look at the wanpipe
config and I discovered that in the one that worked, I had this (I'm
only showing the differences here):

[wanpipe1]
TDMV_HW_DTMF = NO

[w1g1]
TDMV_ECHO_OFF = NO


Whereas on the new one that wasn't working with our old fax machine,
there was this:

[wanpipe1]
TDMV_HW_DTMF = YES
TDMV_HW_FAX_DETECT = YES

[w1g1]
(no entry for TDMV_ECHO_OFF)


I copied the wanpipe config files over from the older working server and
it fixed it :)


FWIW we're using these cards:

http://www.voipon.co.uk/sangoma-a104de-p-328.html


Cheers,
Kingsley.

sc-gw1*CLI> core show channels verbose
Channel              Context              Extension        Prio State   Application  Data                      CallerID        Duration Accountcode BridgedTo
IAX2/iaxmodem0-7025  ext-fax                                  1 Up      AppDial      (Outgoing Line)           08454632501     00:00:31             DAHDI/34-1
DAHDI/34-1           recvfax              08454632501         7 Up      Dial         IAX2/iaxmodem0/0845463250 1276459900      00:00:36             IAX2/iaxmodem0-7025
2 active channels
1 active call


sc-gw1*CLI> dahdi show channel 34-1
Channel: 34
File Descriptor: 52
Span: 2
Extension: 08454632501
Dialing: no
Context: zapinbound
Caller ID: 1276459900
Calling TON: 33
Caller ID name:
Destroy: 0
InAlarm: 0
Signalling Type: ISDN PRI
Radio: 0
Owner: DAHDI/34-1
Real: DAHDI/34-1
Callwait: <None>
Threeway: <None>
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: no
Relax DTMF: yes
Dialing/CallwaitCAS: 0/0
Default law: alaw
Fax Handled: no
Pulse phone: no
Echo Cancellation: 128 taps, currently ON
PRI Flags: Call
PRI Logical Span: Implicit
Actual Confinfo: Num/0, Mode/0x0000
Actual Confmute: Yes
Hookstate (FXS only): Onhook


sc-gw1*CLI> core show channel IAX2/iaxmodem0-7025
 -- General --
           Name: IAX2/iaxmodem0-7025
           Type: IAX2
       UniqueID: 1264584800.13
      Caller ID: 08454632501
 Caller ID Name: (N/A)
    DNID Digits: (N/A)
          State: Up (6)
          Rings: 0
  NativeFormats: 0x8 (alaw)
    WriteFormat: 0x8 (alaw)
     ReadFormat: 0x8 (alaw)
 WriteTranscode: No
  ReadTranscode: No
1st File Descriptor: -1
      Frames in: 1136
     Frames out: 1
 Time to Hangup: 0
   Elapsed Time: 0h0m23s
  Direct Bridge: DAHDI/34-1
Indirect Bridge: DAHDI/34-1
 --   PBX   --
        Context: ext-fax
      Extension:
       Priority: 1
     Call Group: 0
   Pickup Group: 0
    Application: AppDial
           Data: (Outgoing Line)
    Blocking in: ast_waitfor_nandfds
      Variables:
BRIDGEPEER=DAHDI/34-1
DIALEDPEERNUMBER=iaxmodem0/08454632501
FAXFILE=/var/spool/asterisk/fax/20100127093315-1276459900-08454632501
item_count=1
fax2email_from_name=Fax
fax2email_dni=08454632501
fax2email_cli=441276459900
channel1=1264584795.12
destination_type_id_1=7
fax2email_from_addr=fax2email at skycomuk.com
fax2email_paper_size=a4
fax2email_format=pdf
fax2email_to_addr=kingsley at noodles.skymarket.co.uk
recordingemailto=kingsley.tart at gmail.com
recordingemailfrom=
recordcall=1
dniascli=0
custid=13361
app=service_nts_nextgen_v2

  CDR Variables:
level 1: dst=s
level 1: dcontext=default
level 1: channel=IAX2/iaxmodem0-7025
level 1: start=2010-01-27 09:33:20
level 1: answer=2010-01-27 09:33:20
level 1: duration=0
level 1: billsec=0
level 1: disposition=ANSWERED
level 1: amaflags=DOCUMENTATION
level 1: uniqueid=1264584800.13