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Hi all, I am trying to receive faxes through T38Modem to HylaFax. I see a fax coming in on T38Modem, but all I get are errors on the HylaFax side. However, loopback faxes that originate from T38Modem, go to asterisk, and then back to T38Modem work fine. Does this suggest a problem with the ATA I'm using between the fax machine and asterisk? It is a Grandstream 286. Asterisk version is 1.4.22.1. T38Modem command line: /usr/local/bin/t38modem -tt -o /var/log/t38modem.log --no-h323 -u T38Modem \ --sip-listen udp\$xxx.xxx.xxx.xxx:6060 --sip-redundancy 3 \ --ptty +/dev/ttyT38-1,+/dev/ttyT38-2,+/dev/ttyT38-3 \ --route "modem:.*=sip:<dn>@xxx.xxx.xxx.xxx" --route "sip:.*=modem:<dn>" My HylaFax config file for T38Modem is: SessionTracing: 0x2FFF RingsBeforeAnswer: 1 ModemType: Class1 # use class 1 interface ModemFlowControl: rtscts # default ModemRevQueryCmd: AT+FREV? ----- Here's the recv log from HylaFax of the error: Jan 16 18:21:06.09: [ 5283]: SESSION BEGIN 000005025 Jan 16 18:21:06.09: [ 5283]: HylaFAX (tm) Version 4.4.3 Jan 16 18:21:06.09: [ 5283]: <-- [4:ATA\r] Jan 16 18:21:10.42: [ 5283]: --> [7:CONNECT] Jan 16 18:21:10.42: [ 5283]: ANSWER: FAX CONNECTION DEVICE '/dev/ttyT38-1' Jan 16 18:21:10.42: [ 5283]: STATE CHANGE: ANSWERING -> RECEIVING Jan 16 18:21:10.42: [ 5283]: RECV FAX: begin Jan 16 18:21:10.42: [ 5283]: <-- HDLC<32:FF C0 04 B5 00 AA 12 9E 36 86 62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 2C 74 CC> Jan 16 18:21:10.42: [ 5283]: <-- data [32] Jan 16 18:21:10.42: [ 5283]: <-- data [2] Jan 16 18:21:12.33: [ 5283]: --> [7:CONNECT] Jan 16 18:21:12.33: [ 5283]: <-- HDLC<23:FF C0 02 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04> Jan 16 18:21:12.33: [ 5283]: <-- data [23] Jan 16 18:21:12.33: [ 5283]: <-- data [2] Jan 16 18:21:13.05: [ 5283]: --> [7:CONNECT] Jan 16 18:21:13.05: [ 5283]: <-- HDLC<13:FF C8 01 00 77 5F 23 01 FB C1 01 01 18> Jan 16 18:21:13.05: [ 5283]: <-- data [13] Jan 16 18:21:13.05: [ 5283]: <-- data [2] Jan 16 18:21:13.54: [ 5283]: --> [2:OK] Jan 16 18:21:13.54: [ 5283]: <-- [9:AT+FRH=3\r] Jan 16 18:21:20.54: [ 5283]: --> [0:] Jan 16 18:21:20.54: [ 5283]: MODEM <Empty line> Jan 16 18:21:20.54: [ 5283]: MODEM TIMEOUT: waiting for v.21 carrier Jan 16 18:21:20.54: [ 5283]: <-- data [1] Jan 16 18:21:20.54: [ 5283]: --> [2:OK] Jan 16 18:21:20.54: [ 5283]: <-- [9:AT+FRS=7\r] Jan 16 18:21:20.61: [ 5283]: --> [2:OK] Jan 16 18:21:20.61: [ 5283]: <-- [9:AT+FTH=3\r] Jan 16 18:21:20.61: [ 5283]: --> [7:CONNECT] Jan 16 18:21:20.61: [ 5283]: <-- HDLC<32:FF C0 04 B5 00 AA 12 9E 36 86 62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 2C 74 CC> Jan 16 18:21:20.61: [ 5283]: <-- data [32] Jan 16 18:21:20.61: [ 5283]: <-- data [2] Jan 16 18:21:22.46: [ 5283]: --> [7:CONNECT] Jan 16 18:21:22.46: [ 5283]: <-- HDLC<23:FF C0 02 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04> Jan 16 18:21:22.46: [ 5283]: <-- data [23] Jan 16 18:21:22.46: [ 5283]: <-- data [2] Jan 16 18:21:23.18: [ 5283]: --> [7:CONNECT] Jan 16 18:21:23.18: [ 5283]: <-- HDLC<13:FF C8 01 00 77 5F 23 01 FB C1 01 01 18> Jan 16 18:21:23.18: [ 5283]: <-- data [13] Jan 16 18:21:23.18: [ 5283]: <-- data [2] Jan 16 18:21:23.67: [ 5283]: --> [2:OK] Jan 16 18:21:23.67: [ 5283]: <-- [9:AT+FRH=3\r] Jan 16 18:21:30.67: [ 5283]: --> [0:] Jan 16 18:21:30.67: [ 5283]: MODEM <Empty line> Jan 16 18:21:30.67: [ 5283]: MODEM TIMEOUT: waiting for v.21 carrier Jan 16 18:21:30.67: [ 5283]: <-- data [1] Jan 16 18:21:30.67: [ 5283]: --> [2:OK] Jan 16 18:21:30.67: [ 5283]: <-- [9:AT+FRS=7\r] Jan 16 18:21:30.74: [ 5283]: --> [2:OK] Jan 16 18:21:30.74: [ 5283]: <-- [9:AT+FTH=3\r] Jan 16 18:21:30.74: [ 5283]: --> [7:CONNECT] Jan 16 18:21:30.74: [ 5283]: <-- HDLC<32:FF C0 04 B5 00 AA 12 9E 36 86 62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 2C 74 CC> Jan 16 18:21:30.74: [ 5283]: <-- data [32] Jan 16 18:21:30.74: [ 5283]: <-- data [2] Jan 16 18:21:32.58: [ 5283]: --> [7:CONNECT] Jan 16 18:21:32.58: [ 5283]: <-- HDLC<23:FF C0 02 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04> Jan 16 18:21:32.58: [ 5283]: <-- data [23] Jan 16 18:21:32.58: [ 5283]: <-- data [2] Jan 16 18:21:33.30: [ 5283]: --> [7:CONNECT] Jan 16 18:21:33.30: [ 5283]: <-- HDLC<13:FF C8 01 00 77 5F 23 01 FB C1 01 01 18> Jan 16 18:21:33.30: [ 5283]: <-- data [13] Jan 16 18:21:33.30: [ 5283]: <-- data [2] Jan 16 18:21:33.79: [ 5283]: --> [2:OK] Jan 16 18:21:33.79: [ 5283]: <-- [9:AT+FRH=3\r] Jan 16 18:21:40.79: [ 5283]: --> [0:] Jan 16 18:21:40.79: [ 5283]: MODEM <Empty line> Jan 16 18:21:40.79: [ 5283]: MODEM TIMEOUT: waiting for v.21 carrier Jan 16 18:21:40.79: [ 5283]: <-- data [1] Jan 16 18:21:40.79: [ 5283]: --> [2:OK] Jan 16 18:21:40.79: [ 5283]: <-- [9:AT+FRS=7\r] Jan 16 18:21:40.86: [ 5283]: --> [2:OK] Jan 16 18:21:40.86: [ 5283]: <-- [9:AT+FTH=3\r] Jan 16 18:21:40.86: [ 5283]: --> [7:CONNECT] Jan 16 18:21:40.86: [ 5283]: <-- HDLC<32:FF C0 04 B5 00 AA 12 9E 36 86 62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 2C 74 CC> Jan 16 18:21:40.86: [ 5283]: <-- data [32] Jan 16 18:21:40.86: [ 5283]: <-- data [2] Jan 16 18:21:42.71: [ 5283]: --> [7:CONNECT] Jan 16 18:21:42.71: [ 5283]: <-- HDLC<23:FF C0 02 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04> Jan 16 18:21:42.71: [ 5283]: <-- data [23] Jan 16 18:21:42.71: [ 5283]: <-- data [2] Jan 16 18:21:43.43: [ 5283]: --> [7:CONNECT] Jan 16 18:21:43.43: [ 5283]: <-- HDLC<13:FF C8 01 00 77 5F 23 01 FB C1 01 01 18> Jan 16 18:21:43.43: [ 5283]: <-- data [13] Jan 16 18:21:43.43: [ 5283]: <-- data [2] Jan 16 18:21:43.92: [ 5283]: --> [2:OK] Jan 16 18:21:43.92: [ 5283]: <-- [9:AT+FRH=3\r] Jan 16 18:21:48.70: [ 5283]: --> [10:NO CARRIER] Jan 16 18:21:48.70: [ 5283]: MODEM No carrier Jan 16 18:21:48.70: [ 5283]: <-- [9:AT+FRS=7\r] Jan 16 18:21:48.70: [ 5283]: --> [5:ERROR] Jan 16 18:21:48.70: [ 5283]: MODEM Command error Jan 16 18:21:48.70: [ 5283]: Failure to receive silence (synchronization failure). Jan 16 18:21:48.70: [ 5283]: RECV FAX: Failure to receive silence (synchronization failure). Jan 16 18:21:48.70: [ 5283]: RECV FAX: end Jan 16 18:21:48.70: [ 5283]: Failure to receive silence (synchronization failure). Jan 16 18:21:48.70: [ 5283]: SESSION END ____________________ HylaFAX(tm) Users Mailing List _______________________ To subscribe/unsubscribe, click http://lists.hylafax.org/cgi-bin/lsg2.cgi On UNIX: mail -s unsubscribe hylafax-users-request@xxxxxxxxxxx < /dev/null *To learn about commercial HylaFAX(tm) support, mail sales@xxxxxxxxx*