[Freeswitch-users] T38 unsuccessful: result (48) Disconnected after permitted retries

[Anthony Minessale]

did you watch it in a pcap?
Maybe it's one way audio.



On Tue, Jun 15, 2010 at 7:03 AM, samuel <samu60 at gmail.com> wrote:

> hi all,
>
> recently testing T.38 unsuccesfully with freeswitch head version
> (FreeSWITCH Version 1.0.head (git-) ) on a testing server
> (2.6.26-2-xen-amd64)
>
> remote SDP:
>
> v=0
> o=root 6039 6040 IN IP4 A.B.C.D
> s=session
> c=IN IP4 A.B.C.D
> t=0 0
> m=image 19423 udptl t38
> a=T38FaxVersion:0
> a=T38MaxBitRate:9600
> a=T38FaxFillBitRemoval:0
> a=T38FaxTranscodingMMR:0
> a=T38FaxTranscodingJBIG:0
> a=T38FaxRateManagement:transferredTCF
> a=T38FaxMaxBuffer:72
> a=T38FaxMaxDatagram:72
> a=T38FaxUdpEC:t38UDPRedundancy
>
> freeswitch answer:
> v=0
> o=FreeSWITCH 1276579579 1276579581 IN IP4 W.X.Y.Z
> s=FreeSWITCH
> c=IN IP4 W.X.Y.Z
> t=0 0
> m=image 22230 udptl t38
> a=T38FaxVersion:0
> a=T38MaxBitRate:14400
> a=T38FaxFillBitRemoval
> a=T38FaxRateManagement:transferredTCF
> a=T38FaxMaxBuffer:2000
> a=T38FaxMaxDatagram:400
> a=T38FaxUdpEC:t38UDPRedundancy
> a=T38VendorInfo:0 0 0
>
>
> some debug:
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 T4
> expired in phase T30_PHASE_B_RX, state 17
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Too many
> retries. Giving up.
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing
> from phase T30_PHASE_B_RX to T30_PHASE_D_TX
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx
> type 0
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx
> type 4
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing
> from state 17 to 3
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx:  DCN
> with final frame tag
> 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx:  ff
> 13 fa
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send
> complete in phase T30_PHASE_D_TX, state 3
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send
> complete in phase T30_PHASE_D_TX, state 3
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30
> Disconnecting
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing
> from phase T30_PHASE_D_TX to T30_PHASE_E
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx
> type 0
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx
> type 1
> 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing
> from state 3 to 2
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send
> complete in phase T30_PHASE_E, state 2
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:301
> ==============================================================================
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:313 Fax processing not
> successful - result (48) Disconnected after permitted retries.
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:318 Remote station id:
>
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:319 Local station id:
> SpanDSP Fax Ident
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:320 Pages transferred:
> 0
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:322 Total fax pages:
> 0
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:323 Image resolution:
> 0x0
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:324 Transfer Rate:
> 14400
> 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:326 ECM status
> off
>
> I've starting learning about T3X and freswitch so I would like whether
> someone can point me to any doc or any configuration parameter that can
> solve the issue or at least debug it.
>
> Thanks in advance,
>
> Samuel
>
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>


-- 
Anthony Minessale II

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