03-14-2008 10:10 AM - edited 03-15-2019 09:27 AM
We plugged the Castelle Fax Press into FXS port 1. The VOice Gateway has a PRI. Why can't we fax out or recieve fax. Here is a debug i ran on the voice gateway.
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Voice gateway - Number we where trying to fax to. 17166919114.
LB-WP-2821#
013813: *Mar 13 12:57:21.297 EDT: ISDN Se0/1/1:23 Q931: pak_private_number: Inva
lid type/plan 0x2 0x0 may be overriden; sw-type 13
013814: *Mar 13 12:57:21.297 EDT: ISDN Se0/1/1:23 Q931: Applying typeplan for sw
-type 0xD is 0x2 0x0, Called num 17166919114
013815: *Mar 13 12:57:21.297 EDT: ISDN Se0/1/1:23 Q931: TX -> SETUP pd = 8 call
ref = 0x0310
Bearer Capability i = 0x9090A2
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98396
Exclusive, Channel 22
Progress Ind i = 0x8183 - Origination address is non-ISDN
Calling Party Number i = 0x0080, '3155'
Plan:Unknown, Type:Unknown
Called Party Number i = 0xA0, '17166919114'
Plan:Unknown, Type:National
013816: *Mar 13 12:57:21.345 EDT: ISDN Se0/1/1:23 Q931: RX <- CALL_PROC pd = 8
callref = 0x8310
Channel ID i = 0xA98396
Exclusive, Channel 22
013817: *Mar 13 12:57:21.781 EDT: ISDN Se0/1/1:23 Q931: RX <- PROGRESS pd = 8 c
allref = 0x8310
Progress Ind i = 0x8A81 - Call not end-to-end ISDN, may have in-band inf
o
013818: *Mar 13 12:57:21.785 EDT: ISDN Se0/1/1:23 Q931: RX <- CONNECT pd = 8 ca
llref = 0x8310
013819: *Mar 13 12:57:21.785 EDT: %ISDN-6-CONNECT: Interface Serial0/1/1:21 is n
ow connected to 17166919114 N/A
013820: *Mar 13 12:57:21.789 EDT: ISDN Se0/1/1:23 Q931: TX -> CONNECT_ACK pd = 8
callref = 0x0310
013821: *Mar 13 12:57:37.065 EDT: ISDN Se0/1/1:23 Q931: RX <- SETUP pd = 8 call
ref = 0x0331
03-14-2008 11:19 AM
This call actually was setup from the ISDN Q.931 perspective. Something else failed, possibly the fax negotiation.
We would need a lot more information to help you.
Here is a fax troubleshooting guide.
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/voice_troubleshooting/old/vts_fax.html
I would start by attaching a handset to the FXS port and making sure that it can complete calls.
Assuming that works, then you need to look at fax negotiation between the PRI and FXS. Is it fax-relay, fax-passthru, or T.38? Are the ports H.323 or MGCP?
A "show tech" from the router will help immensely.
I have seen several fax cases with locally hairpinned calls resolved by "no local-bypass" under the voice-card.
If these tips and doc does not help, then please gather a "show tech" and we can go from there. A "debug voip ccapi inout" might also be helpful.
Chris
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