[Asterisk-Users] Problems with fax failing when bridged across TDM400Pvers E

[Chuck Bunn]

H,

We have a fax machine connected to a FXS modules on TDM400P card. There 
is an FXO module connected to a pots line. We can receive faxes okay but 
we seem to be having trouble sending them. The connection is bridged 
between the appropriate ZAP channels but it just hangs there. The remote 
fax answers and the fax machine indicates that it is connecting - but 
then we get transmission errors and the fax fails. I had tuned the line 
to get rid echos using ./ztmonitor (works great by the way) could I have 
tuned it too much or should I tune each channel separately (you can see 
my rxgain and txgain settings in zapata.conf)? Here are my files.

************
zapata.conf

[trunkgroups]

[channels]
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=14.0
txgain=4.0
usecallerid=yes
hidecallerid=no
callwaiting=no
threewaycalling=no
transfer=no
immediate=no
faxdetect=both

context=incoming-home
signalling=fxs_ks
group=1
channel => 1,2

context=local
signalling=fxo_ks
group=2
channel => 3

context=longdistance
signalling=fxo_ks
group=3
channel => 4

***********************************
extensions.conf

[general]
#include macros.incl

[incoming-home]
exten => s,1,Goto(extensions-home,100,1)
exten => t,1,Goto(extensions-home,100,1)
exten => i,1,Goto(extensions-home,100,1)

[extensions-home]
include => parkedcalls

;Operator queue, Operator Console, and Receptionist Phone
exten => 100,1,Answer()
exten => 100,2,Queue(extensions-home|trn|||120)

;Office Personnel
exten => _30[0-1],1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => _31[0-4],1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => _399,1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => _40[0-1],1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => _499,1,Macro(stdexten,${EXTEN},SIP/${EXTEN})

;Spa Personnel
exten => _500,1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => _51[0-2],1,Macro(stdexten,${EXTEN},SIP/${EXTEN})
exten => 590,1,Dial(ZAP/3,20)

;Voicemail Main
exten => 800,1,Answer
exten => 800,2,VoicemailMain

;Agent Login
exten => 801,1,AgentCallbackLogin(,, at extensions-home)

;Voice Conferencing
exten => _85X,1,Answer
exten => _85X,2,MeetMe(${EXTEN})

;exten => i,1,Voicemail(s300)
;exten => t,1,Voicemail(s300)

exten => fax,1,Dial(ZAP/4,20)
exten => fax,2,Congestion
exten => fax,102,Congestion

[local]
ignorepat => 9
exten => _9NXXXXXX,1,Dial(${OUTBOUNDTRUNK}/${EXTEN:1})
exten => _9NXXXXXX,2,Congestion(5)
exten => _9NXXXXXX,102,congestion(5)
exten => 911,1,Dial(${OUTBOUNDTRUNK}/911)
exten => 9911,1,Dial(${OUTBOUNDTRUNK}/911
include => extensions-home

[longdistance]
ignorpat => 9
exten => _91NXXNXXXXXX,1,Dial(${OUTBOUNDTRUNK}/${EXTEN:1})
exten => _91NXXNXXXXXX,2,Congestion(5)
exten => _91NXXNXXXXXX,102,congestion(5)
include => local


[globals]
OUTBOUNDTRUNK=Zap/G1

PSTN1=Zap/1
PSTN2=Zap/2

PHONE1=Zap/3
PHONE2=Zap/4

***************************
modules.conf

modules]
autoload=yes
;
noload => pbx_gtkconsole.so
noload => pbx_kdeconsole.so
;
; Intercom application is obsoleted by
; chan_oss.  Don't load it.
;
noload => app_intercom.so
;
; Explicitly load the chan_modem.so early on to be sure
; it loads before any of the chan_modem_* 's afte rit
;
noload => chan_modem.so
noload => chan_modem_aopen.so
noload => chan_modem_bestdata.so
noload => chan_modem_i4l.so
noload => chan_phone.so
noload => chan_skinny.so
noload => chan_iax2.so
;
load => res_musiconhold.so
;
; Load either OSS or ALSA, not both
; By default, load OSS only (automatically) and do not load ALSA
;
;noload => chan_alsa.so
noload => chan_oss.so
;
; Module names listed in "global" section will have symbols globally
; exported to modules loaded after them.
;
[global]

**************************

CLI output

  -- Starting simple switch on 'Zap/2-1'
    -- Executing Goto("Zap/2-1", "extensions-home|100|1") in new stack
    -- Goto (extensions-home,100,1)
    -- Executing Answer("Zap/2-1", "") in new stack
    -- Executing Queue("Zap/2-1", "extensions-home|trn|||120") in new stack
    -- Redirecting Zap/2-1 to fax extension
    -- User disconnected from queue extensions-home when they almost made it
  == Spawn extension (extensions-home, fax, 0) exited non-zero on 'Zap/2-1'
    -- Executing Dial("Zap/2-1", "ZAP/4|20") in new stack
    -- Called 4
    -- Zap/4-1 is ringing
    -- Zap/4-1 is ringing
    -- Zap/4-1 answered Zap/2-1
    -- Attempting native bridge of Zap/2-1 and Zap/4-1
    -- Hungup 'Zap/4-1'
  == Spawn extension (extensions-home, fax, 1) exited non-zero on 'Zap/2-1'
    -- Hungup 'Zap/2-1'

*****************************

Thanks