Section 4 : Troubleshooting

Q409: Need help with phase error while receiving?

Q.

Need help with phase error while receiving?

I have a SupraFAXModem with ROM version V1.400-03-CS29. This is connected to a Sun IPC running SunOS 4.1.2. I'm trying to use FlexFAX v2.3beta036 compiled with gcc 2.5.8 and libg++ 2.5.3. I'm using the standard config file for this modem type. I didn't list it here, but if people think it would be helpful, I could.

Everything else works ok (sending faxes, data connections in and out). Just receiving has a problem. I've been trying to send from a regular fax machine. The fax machine complains that the remote unit (my system) isn't responding and times out. The log I get is:

Jan 06 11:22:38.02: [ 5459]: SESSION BEGIN Jan 06 11:22:38.04: [ 5459]: <-- [3:ATA] Jan 06 11:22:39.80: [ 5459]: --> [3:FAX] Jan 06 11:22:45.83: [ 5459]: --> [5:+FCON] Jan 06 11:22:45.84: [ 5459]: ANSWER: FAX CONNECTION Jan 06 11:22:45.84: [ 5459]: STATE CHANGE: ANSWERING -> RECEIVING Jan 06 11:22:45.92: [ 5459]: RECV: begin Jan 06 11:25:46.08: [ 5459]: TIMEOUT: reading line from modem Jan 06 11:25:46.09: [ 5459]: REMOTE HANGUP: Unspecified Receive Phase B error (code 70) Jan 06 11:25:46.09: [ 5459]: RECV: Unspecified Receive Phase B error (begin) Jan 06 11:25:46.11: [ 5459]: RECV: empty file "/bigtmp/faxAAAa05459" deleted Jan 06 11:25:46.16: [ 5459]: RECV: end Jan 06 11:25:46.16: [ 5459]: SESSION END

A.

You probably have the ModemRate set to other than 19.2. Most Supra modems lock the DTE-DCE speed to 19.2 when receiving in Class 2 (see http://www.hylafax.org/Modems/supra-v32bis.html). You can either run at 19.2 all the time or try switching to 19.2 when a fax session is initiated (see ModemAnswerFaxBeginCmd).

FAQ Index

Q410: Unrecognized Transparent data command (code 44)?