Hola Paolo, I have configured the command "network-clock-select 1 E1 0/0/0" and there is no difference. The disconnect value is 17 (user busy), but the fax receive the call as a voice call.

Thanks.

Hola

Fax calls are voice calls. I do not understand why "user busy is returned". If you call from a phone, do you hear the fax answering and the fax tones ?

If I call from a phone I hear a tone during few msec. and after only silence. The call is disconnected (cause value 16) after 40 sec. aprox.

Gracias.

Check "debug isdn q931" with "term mon". There you should see that a fax call is the same as a voice call.

The only difference might be the bearer capability for fax calls to be "3.1 KHz" instead of "Speech". That should not prevent the call to be routed to the ATA.

Here is the output of debug isdn q931 for a fax connection:

*Jul 7 10:48:23.989: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x6300

Bearer Capability i = 0x9090A3

Standard = CCITT

Transfer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA1838F

Preferred, Channel 15

Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band inf

o

Calling Party Number i = 0x2183, 'sssssssss'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, 'ddddddddd'

Plan:ISDN, Type:National

Sending Complete

*Jul 7 10:48:23.997: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x

E300

Channel ID i = 0xA9838F

Exclusive, Channel 15

*Jul 7 10:48:24.169: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8 callref = 0xE

300

*Jul 7 10:48:30.669: ISDN Se0/0/0:15 Q931: TX -> CONNECT pd = 8 callref = 0xE3

00

*Jul 7 10:48:30.713: ISDN Se0/0/0:15 Q931: RX <- CONNECT_ACK pd = 8 callref =

0x6300

*Jul 7 10:48:30.713: %ISDN-6-CONNECT: Interface Serial0/0/0:14 is now connected

to sssssssss N/A

*Jul 7 10:48:33.601: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/

0:14, changed state to up

*Jul 7 10:49:19.289: %ISDN-6-DISCONNECT: Interface Serial0/0/0:14 disconnected

from sssssssss , call lasted 48 seconds

*Jul 7 10:49:19.289: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0

xE300

Cause i = 0x8090 - Normal call clearing

*Jul 7 10:49:19.333: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8 callref = 0x63

00

*Jul 7 10:49:19.337: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref =

0xE300

Everything seems correctly, but it is not working. The fax report says that the incoming call is a voice call and it doesn't print anything.

Gracias.

Can you try a different fax machine ?

The next step would be to check the ATA setting as indicated in the "troubleshooting ATA Fax" document.

The further following step would be converting the ATA to H.323.

Hello,

is the gateway controlled by MGCP?

Bye

Jo

Hello, the gateway is configured wit H323 protocol (not controlled by the CCM). So an incoming call goes to the E1 card (in the 2821 gw), it matchs a DID dial-peer (h323) to the CCM, the CCM makes a translation (from public number to an extension) and then it matchs the internal extension of the fax (in ATA, which is registered as SCCP phone).

This is the ATA config:

LBRCodec 3

AudioMode 0x00350035

ConnectMode 0x90000400

FXSInputLevel -1

FXSOutputLevel -4

The dial-peer:

dial-peer voice 2 voip

description Llamadas entrantes del PRIMARIO

destination-pattern xxxxxxxxx

session target ipv4:yyyyyyyyy

!

dial-peer voice 3 pots

incoming called-number xxxxxxxxx

direct-inward-dial

!

And the translation pattern in CCM:

Translation Pattern: xxxxxxxxx

Called Party Transform Mask: 1828

Thanks.

Hi, please try codec, audio and connect modes as indicated at:

http://www.cisco.com/en/US/products/hw/gatecont/ps514/products_configuration_example09186a00800d698e.shtml#task4

Hello, it works!!! Thank you very much.

Best regards.

Hi, although it seems working fine, many times we receive the fax incomplete. Usually it stops at the middle of the fax.

Thanks.

Hi, check "show controllers E1", it must have 0 errors, and 0 slips for fax to work reliably.