09-11-2008 06:33 AM - edited 03-15-2019 01:12 PM
Hi. I have CCM6, ATA 186 and 2821 with fxo port.
My ata configuration
S/W Version 3.02.03(051201A)
AudioMode - 0x00350035
ConnectMode - 0x90000400
My router configuration.
!
voice service voip
h323
modem passthrough nse codec g711ulaw
!
!
dial-peer voice 2000 voip
preference 2
destination-pattern ...
modem passthrough nse codec g711ulaw redundancy
session target ipv4:10.10.18.5
dtmf-relay h245-alphanumeric
fax rate disable
no vad
!
I can call from fax connecting to ata186.
I want send fax, but fax not work, in handset i heard remote fax ready for connect.
You can help my, with my problem.
Solved! Go to Solution.
09-11-2008 01:52 PM
Have you checked the speed that the fax is set to, it should be at a maximum baud of 14400
09-11-2008 01:52 PM
Have you checked the speed that the fax is set to, it should be at a maximum baud of 14400
09-15-2008 01:27 AM
The fax does not allow to expose speed.
09-16-2008 02:59 AM
Hi. I change "fax rate disable" on "fax rate 14400", but it not resolve problem. You can help me?
09-18-2008 10:45 PM
This does not work with ATA:
modem passthrough nse codec g711ulaw redundancy
"redundancy" sends all the RTp packets twice.
Try this:
dial-peer voice
modem passthrough nse codec g711ulaw
fax rate disable
Fax rate 14400 is only good for fax relay which the ATA does not support.
Cheers,
Martin
09-18-2008 10:49 PM
Hi,
With the following config you should have less - not "no" fax problems:
Configure the following on the gateway (H323)
dial-peer voice xxx voip
! ....the usual peer stuff
modem passthrough nse codec g711ulaw
fax rate disable
...
On the ISDN interface configure this:
isdn reject vod ! (solves some magic fax problems)
You can check the modem passthrough operation: (look for "MODEMPASS")
Code: Select all
Router#show call active voice brief
1493 : 369 1303346870ms.1 +5330 pid:1999 Answer 5551234 active
dur 00:00:10 tx:525/88044 rx:526/83692
Tele 0/2/0 (369) [0/2/0.1] tx:8790/8790/0ms g711ulaw noise:-38 acom:6 i/0:-11/-79 dBm
1493 : 370 1303346880ms.1 +5310 pid:2000 Originate 5554321 active
dur 00:00:10 tx:439/1236069320 rx:525/83844
IP 10.50.3.155:16384 SRTP: off rtt:0ms pl:6120/0ms lost:0/0/0 delay:75/65/75ms g711ulaw TextRelay: off
media inactive detected:n media contrl rcvd:n/a timestamp:n/a
long duration call detected:n long duration call duration:n/a timestamp:n/a
MODEMPASS nse buf:0/0 loss 0% 0/0 last 1225s dur:0/0s
Change the following in the fax machine:
- Change the fax speed to 9600 bps (the recommended speed for "no issues").
- Set the protocol to G3.
- Disable the Error Correcting Mode (ECM) BTW: this also disables SG3. If the fax has no "disable SG3" then disable ECM - does the same.
If the above actions do not work, consider an FXS interface. :-)
Configure the following on the ATA-186 if you still have problems:
AudioMode 0x00150015 (1st 0015= port1; 2nd 0015=port2)
Good luck - and lets hope that the VG20x will be released soon...
/Martin
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