Fax is not received
After trying to use Fax2Email functionality in Asterisk CLI you see:
- Check permissions on /var/spool/asterisk/faxes
- Make sure UDTP range 4000-4999 is open on the firewall.
mor_fax2email: MOR Fax2Email v0.1.3 AGI script started. mor_fax2email: Failed to connect database server. Check debug for more info. mor_fax2email: ERROR! Not connected to database.
Solution:
In /var/lib/asterisk/agi-bin/mor.conf correct DB connection settings.
__ast_pbx_run: Channel 'Local/999@mor_local-1217,2' sent into invalid extension 'fax' in context 'mor_fax2email', but no invalid handler
Make sure /etc/asterisk/extensions_mor.conf has such line:
[mor_fax2email]
exten => _X.,1,Answer
exten => _X.,2,StopPlaytones
exten => _X.,3,Playback(beep)
exten => _X.,4,Set(FAXFILE=${CDR(UNIQUEID)})
exten => _X.,5,RxFax(/var/spool/asterisk/faxes/${FAXFILE}.tif)
exten => fax,1,Goto(mor_fax2email,111,1)
exten => h,1,DeadAGI(mor_fax2email) exten => h,2,Hangup
If not - add such line (marked in bold) and reload Asterisk.
ERROR! TIF file does not exist!
If you get a similar output in Asterisk CLI:
mor_fax2email:
mor_fax2email: MOR Fax2Email AGI script started.
mor_fax2email: Successfully connected to database.
mor_fax2email: from sender: , fax file: 1311285609.5, faxsender: 311043455xx, fax_id :14, pdf file: /var/spool/asterisk/faxes/1311285609.5.pdf, tif file: /var/spool/asterisk/faxes/1311285609.5.tif
[2011-07-22 00:01:52] NOTICE[3316]: app_mor_debug.c:168 process_call_details: RTPAUDIOQOS: ssrc=655552979;themssrc=428650528;lp=0;rxjitter=0.006493;rxcount=4511;txjitter=0.002304;txcount=541;rlp=0;rtt=0.020000
[2011-07-22 00:01:52] NOTICE[3316]: app_mor_debug.c:186 process_call_details: PDD:
[2011-07-22 00:01:52] NOTICE[3316]: app_mor.c:2407 mor_acct_stop: Reseller's balance will be deducted by: 0.000000, and frozen balance by: 0.000000.
mor_fax2email: ERROR! TIF file does not exist!
-- AGI Script mor_fax2email completed, returning 0
-- Executing [h@mor_fax2email:2] Hangup("Local/910007@mor_local-1f39,2", "") in new stack
== Spawn extension (mor_fax2email, h, 2) exited non-zero on 'Local/91000x@mor_local-1f39,2'
the problem can be anywhere if you get this error. Please see this page: FAX over VoIP
Make sure T38 was not enabled
If you face a problem with FAX not being received, two ways to detect this problem:
- Fax call takes about 30 seconds, and faxes not trains (if the codec is G729, call takes a little bit more than 40seconds and fails)
- Make a SIP debug, and you will see like this:
v=0. o=CiscoSystemsSIP-GW-UserAgent 7568 7687 IN IP4 195.62.x.x. s=SIP Call. c=IN IP4 ip.add.re.ss. t=0 0. m=image 52972 udptl t38. c=IN IP4 ip.add.re.ss. a=T38FaxVersion:0. a=T38MaxBitRate:14400. a=T38FaxFillBitRemoval:0. a=T38FaxTranscodingMMR:0. a=T38FaxTranscodingJBIG:0. a=T38FaxRateManagement:transferredTCF. a=T38FaxMaxBuffer:200. a=T38FaxMaxDatagram:72. a=T38FaxUdpEC:t38UDPRedundancy.
Solution, check in sip.conf:
t38pt_udptl = no (be sure, it's NOT yes)
FAX is not received on ZAP channel
When ZAP channel is used, FAX device should be assigned to Asterisk server which has ZAP/DAHDI cards installed. Please make sure that correct Asterisk server is specified in "Server" drop-down list on FAX device settings.
It can be an issue when you have more than one Asterisk server only.
