[Freeswitch-users] Fax on Sangoma

[Anita Hall]

Hi

My client had been using an old torrenta cards which game problems with
pretty much everything :) After evangelizing the cause of Sangoma for more
than 3 months (yes, they are dumb), they are finally making the transition
so I am pretty excited. The choice of card is A108D which does a whole
bunch of DSP in the hardware.

Now, the first hurdle that I have to make Sangoma jump across is getting
incoming Fax over E1 right. We are using mod_spandsp, of course. So, here I
will be needing a whole lot of help from the veterans of spandsp and Faxing
:) I desperately need Sangoma to pass the Fax test or they will give me
torrenta cards all over again!

The primary cause of failures are - (49) The call dropped prematurely and
(48) Disconnected after permitted retries.

For example, in this case, can I conclude that the other end did not
provide a Fax tone or is it something else?

2aeb5f7c-75b5-11e1-8f36-b3286880c45b EXECUTE FreeTDM/4:2/47615728
rxfax(/srv/fax/in/2aeb5f7c-75b5-11e1-8f36-b3286880c45b.tiff)
2aeb5f7c-75b5-11e1-8f36-b3286880c45b 2012-03-24 18:57:57.824906 [DEBUG]
mod_spandsp_fax.c:1357 Raw read codec activation Success L16 20000
2aeb5f7c-75b5-11e1-8f36-b3286880c45b 2012-03-24 18:57:57.824906 [DEBUG]
switch_core_codec.c:216 FreeTDM/4:2/47615728 Push codec L16:70
2aeb5f7c-75b5-11e1-8f36-b3286880c45b 2012-03-24 18:57:57.824906 [DEBUG]
mod_spandsp_fax.c:1373 Raw write codec activation Success L16
2012-03-24 18:57:57.844876 [DEBUG] ftmod_wanpipe.c:965 [s4c2][4:2] First
packet read stats: Rx queue len: 1, Rx queue size: 10
2012-03-24 18:57:57.904879 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 17
2012-03-24 18:57:57.924878 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier down (-1) in state 17
2012-03-24 18:57:58.104877 [DEBUG] ftmod_wanpipe.c:901 [s4c2][4:2] First
packet write stats: Tx queue len: 1, Tx queue size: 5, Tx idle: 30
2012-03-24 18:57:58.444908 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 17
2012-03-24 18:57:58.644907 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier down (-1) in state 17
2012-03-24 18:57:58.664878 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 1
2012-03-24 18:57:58.764879 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 17
2012-03-24 18:57:58.764879 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier down (-1) in state 17
2012-03-24 18:57:58.784878 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 17
2012-03-24 18:57:58.804879 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier down (-1) in state 17
2012-03-24 18:57:59.244886 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier up (-2) in state 17
2012-03-24 18:57:59.464887 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 HDLC
signal status is Carrier down (-1) in state 17
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 T4
expired in phase T30_PHASE_B_RX, state 17
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Retry
number 1
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Changing
from phase T30_PHASE_B_RX to T30_PHASE_B_TX
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW FAX Set rx
type 0
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW FAX Set tx
type 4
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Sending
ident 'Sangoma Fax Ident'
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Tx:  CSI
without final frame tag
2012-03-24 18:57:59.564903 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Tx:  ff
03 40 74 6e 65 64 49 20 78 61 46 20 61 6d 6f 67 6e 61 53 20 20 20
2012-03-24 18:58:00.524877 [DEBUG] ftmod_libpri.c:1065 -- Hangup REQ on
channel 4:1
2012-03-24 18:58:00.524877 [DEBUG] ftmod_libpri.c:1078 [s4c1][4:1] Changed
state from UP to TERMINATING
2012-03-24 18:58:00.524877 [DEBUG] ftdm_state.c:511 [s4c1][4:1] Executing
state processor for TERMINATING


I will need some more hand-holding with logs later :)


regards,
Anita
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