Displaying 2 results from an estimated 2 matches for "global_t38_cap".
2009 Feb 09
1
What t38pt_udptl is ? Explain T.38 in 1.4
Hi,
I would like to improve my understanding of T.38.
1. What T38FAX_VERSION_0 or T38FAX_VERSION_1 in chan_sip.c means ?
voip-info.org implies one has to change values in chan_sip.c to make it
work.
Shall I set T38FAX_VERSION_1 or leave T38FAX_VERSION_0 in
global_t38_capability ?
Source code says "This is default: NO MMR and JBIG trancoding, NO fill bit
removal, transferredTCF TCF, UDP FEC, Version 0 and 9600 max fax rate"
What does "Version 0" relates to in this aboxe line ? MMR and JBIG
transcoding ?
2. A softphone like Zoiper is able to rec...
2009 Nov 14
1
Asterisk with T38 Fax
...allow=ulaw
allow=alaw
context=from-outside
t38pt_udptl=yes
[operator]
qualify=no
nat=yes
host=189.160.126.201
dtmfmode=rfc2833
context=from-outside
type=friend
canreinvite=yes
t38pt_udptl=yes
;t38pt_rtp=no
;t38pt_tcp=no
disallow=all
allow=ulaw
allow=alaw
--- channels/chan_sip.c ---
static int global_t38_capability = T38FAX_VERSION_0 | T38FAX_RATE_2400 | T38FAX_RATE_4800 | T38FAX_RATE_7200 | T38FAX_RATE_9600;
--- logs ---
logs
[Nov 13 10:21:11] VERBOSE[25087] logger.c:
<--- SIP read from 189.160.126.210:5060 --->
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 189.6.70.47:5060;branch=z9hG4bK6d...