HI,
we have a strange behaviour of fax at a Callmanager Express.
We confiogured CCME with a build in 4 -port FXS card. We register the FXS port 0/3/0 with SCCP and STCAPP at the CCME as ephone.
If we connect an analog phone at the port incoming and outgoing calls works fine.
Under voice service voip global configuration we configured fax protocol t38 with fallback passtrough g711alaw.
Now an incoming call to the fax machine:
Mar 4 13:42:02.334: ISDN BR0/0/1 Q931: RX <- SETUP pd = 8 callref = 0x35
Sending Complete
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Exclusive, B1
Calling Party Number i = 0x2180, '12345'
Plan:ISDN, Type:National
Calling Party Number i = 0x2183, '12345'
Plan:ISDN, Type:National
Called Party Number i = 0xC1, '9999'
Plan:ISDN, Type:Subscriber(local)
Mar 4 13:42:02.378: ISDN BR0/0/1 Q931: TX -> CALL_PROC pd = 8 callref = 0xB5
Channel ID i = 0x89
Exclusive, B1
Mar 4 13:42:02.398: ISDN BR0/0/1 Q931: TX -> ALERTING pd = 8 callref = 0xB5
Progress Ind i = 0x8188 - In-band info or appropriate now available
Mar 4 13:42:10.122: ISDN BR0/0/1 Q931: TX -> CONNECT pd = 8 callref = 0xB5
Channel ID i = 0x89
Exclusive, B1
Mar 4 13:42:10.242: ISDN BR0/0/1 Q931: RX <- CONNECT_ACK pd = 8 callref = 0x35
Mar 4 13:42:10.246: %ISDN-6-CONNECT: Interface BRI0/0/1:1 is now connected to 12345 N/A
And now the output of show voice call summary:
At first:
ccme#sh voice call summary
PORT CODEC VAD VTSP STATE VPM STATE
============== ========= === ==================== ======================
0/0/0.1 - - -
0/0/0.2 - - -
0/0/1.1 g711ulaw n S_CONNECT S_TSP_CONNECT
0/0/1.2 - - -
0/2/0.1 - - -
0/2/0.2 - - -
0/2/1.1 - - -
0/2/1.2 - - -
0/3/0 g711ulaw n S_CONNECT FXSLS_CONNECT
Than it changes to:
ccme#sh voice call summary
PORT CODEC VAD VTSP STATE VPM STATE
============== ========= === ==================== ======================
0/0/0.1 - - -
0/0/0.2 - - -
0/0/1.1 modem-rel n S_CONNECT S_TSP_CONNECT
0/0/1.2 - - -
0/2/0.1 - - -
0/2/0.2 - - -
0/2/1.1 - - -
0/2/1.2 - - -
0/3/0 modem-rel n S_CONNECT FXSLS_CONNECT
What's that? "modem-rel"??
And finally it changes again:
ccme#sh voice call summary
PORT CODEC VAD VTSP STATE VPM STATE
============== ========= === ==================== ======================
0/0/0.1 - - -
0/0/0.2 - - -
0/0/1.1 cisco n S_FAX S_TSP_CONNECT
0/0/1.2 - - -
0/2/0.1 - - -
0/2/0.2 - - -
0/2/1.1 - - -
0/2/1.2 - - -
0/3/0 cisco n S_FAX FXSLS_CONNECT
But there is no "cisco"-codec configured anywhere!
The fax mchines trying to receive but after some time it fails!
Somebody can help?
