On 3/06/2013 8:04 PM, Andrey Polovov wrote:
Thank you for reply, Larry!
On 06/03/2013 05:14 AM, Larry Moore wrote:
1) On SPA112 set "FAX T38 Redundancy" = 3
I have tried to change this value with no effect.
2) Add t38pt_usertpsource=yes in [mtt] section
This option take no positive effect for me, asterisk continues to use
ports from udptl.conf range. But in the oser side, I think, that there
are no problems with network, because:
* on router, that provide internet for asterisk configured full DNAT
from white IP to asterisk server,
* fax between asterisk cmd SendFax and PSTN fax works great.
3) Change maxdatagram=200 to maxdatagram=1400
4) In udptl.conf change T38FaxMaxDatagram to a value of 1400
5) In udptl.conf change use_even_ports to yes
This settings doesnt help me.
You don't appear to list the sip.conf entry for the SPA112.
I`m sorry, spa112 peer settings are in mysql extconfig, config file
analogue:
[297]
context=office
secret=xxx
host-dynamic
nat=yes
type=friend
callerid=297
disallow=all
allow=alaw
Where did t38pt_rtp & t38_tcp come from?
This settings I have googled on some forum and then add to my config
with despair.
You may also want to experiment with the SPA112 setting "FAX T38 ECM
Enable"
This option doesnt help me too :(.
Additional info: fax between two SPA112 works perfect! Now I returned
settings to original state as described in first letter.
Have you checked the installed version of firmware against the latest
available from Cisco?
Looking at your SIP information when your ITSP initiated a T.38 session
it did not indicate a maxmimum bitrate, it would appear your spa112
attempted to negotiate a connection at 2400bps.
Do you have a sip debug session when you sent a fax from your Asterisk
box to the PSTN, it would be interesting to see if it sends it as a t.38
or reverts to G711 audio.
You will only want to experiment with the ECM option once you have t.38
working.
Larry.
--
_____________________________________________________________________
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
http://www.asterisk.org/hello
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
