[hylafax-users] One-way audio - iaxmodem / hylafax

[Graham Wooden <graham@xxxxxxxxxx>]

Hi all,

I have setup the following several times on other machines and works
flawless - but I can't get it to work on a new setup.

I have a fax machine setup via SIP to a Asterisk server, from which it's
sending to a local iaxmodem / hylafax setup.
Local iaxmodem to iaxmodem, fax calls work fine.  But faxes from the SIP
extension, I only get one way audio.  Even from another SIP extension
(Polycom phone) on the server, I can make calls and those are two-way just
fine.  No difference between the two extensions. Not doing NAT either.

I can swing this same SIP fax machine extension over to another Asterisk
machine on the same network and works just fine. Same software revs. Only
difference is that this problem box is 32bit CentOS 5.0 opposed to my other
64Bit CentOS 5.0.

I tried both ulaw and slinear with no difference.

Asterisk - 1.4.20.rc1
Iaxmodem - 1.1.0
hylafax  - 5.2.2

Attached is the dsp .wav file - can anyone tell me any hints, I am not an
expert to determine if it sounds 'ok'.  I have just about pulled out all my
hair - any help would be great.  Thanks,


May 03 21:38:56.19: [15291]: SESSION BEGIN 000000144 +18055551212
May 03 21:38:56.19: [15291]: HylaFAX (tm) Version 5.2.2
May 03 21:38:56.19: [15291]: CallID: '8055551212' '8055551212' '<NONE>'
'8055551213'
May 03 21:38:56.19: [15291]: MODEM set XON/XOFF/FLUSH: input ignored, output
disabled
May 03 21:38:56.19: [15291]: <-- [4:ATA\r]
May 03 21:38:59.91: [15291]: --> [7:CONNECT]
May 03 21:38:59.91: [15291]: ANSWER: FAX CONNECTION  DEVICE '/dev/ttyIAX1'
May 03 21:38:59.91: [15291]: STATE CHANGE: ANSWERING -> RECEIVING
May 03 21:38:59.91: [15291]: RECV FAX: begin
May 03 21:38:59.91: [15291]: <-- 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 AC 74 4C 74 4C>
May 03 21:38:59.91: [15291]: <-- data [32]
May 03 21:38:59.91: [15291]: <-- data [2]
May 03 21:39:00.87: [15291]: --> [7:CONNECT]
May 03 21:39:00.87: [15291]: <-- HDLC<23:FF C0 02 CA 72 A2 12 C2 2A 92 D2 EA
2A 42 04 04 04 04 04 04 04 04 04>
May 03 21:39:00.87: [15291]: <-- data [23]
May 03 21:39:00.87: [15291]: <-- data [2]
May 03 21:39:01.61: [15291]: --> [7:CONNECT]
May 03 21:39:01.61: [15291]: <-- HDLC<13:FF C8 01 00 73 5F 23 01 FB C1 01 01
18>
May 03 21:39:01.61: [15291]: <-- data [13]
May 03 21:39:01.61: [15291]: <-- data [2]
May 03 21:39:02.19: [15291]: --> [2:OK]
May 03 21:39:02.19: [15291]: <-- [9:AT+FRH=3\r]
May 03 21:39:09.19: [15291]: --> [0:]
May 03 21:39:09.20: [15291]: MODEM <Empty line>
May 03 21:39:09.20: [15291]: MODEM TIMEOUT: waiting for v.21 carrier
May 03 21:39:09.20: [15291]: <-- data [1]
May 03 21:39:09.20: [15291]: --> [2:OK]
May 03 21:39:09.20: [15291]: <-- [9:AT+FRS=7\r]
May 03 21:39:27.30: [15291]: --> [10:NO CARRIER]
May 03 21:39:27.30: [15291]: MODEM No carrier
May 03 21:39:27.30: [15291]: Failure to receive silence (synchronization
failure). {E100}
May 03 21:39:27.30: [15291]: RECV FAX: Failure to receive silence
(synchronization failure). {E100}
May 03 21:39:27.30: [15291]: RECV FAX: end
May 03 21:39:27.30: [15291]: Failure to receive silence (synchronization
failure). {E100}
May 03 21:39:27.30: [15291]: SESSION END

Attachment: ttyIAX1-dsp.wav
Description: Binary data