[asterisk-users] T.38 and Linksys SPA8000

[Vinícius Fontes]

Hello everyone.

I'm trying to set up a SIP DID on a customer, which uses T.38 for faxing. Voice is working great, but I never configured anything using T.38 in Asterisk so I'm kinda lost.

On my googling I found out that would be best letting the Linksys SPA8000 (for those that don't know, it's identical to the PAP2 but with 8 ports instead of 2) and the telco negotiate with each other. Tried using canreinvite=yes but I still get transmission errors.

Here's the relevant parts of my sip.conf (the telco trunk and the extension connected to the fax machine). If anyone has a working, in production, setup similar to what I'm trying to do here and don't mind sharing how it was configured, I would appreciate it a lot.

Many thanks in advance.


[voxip]
username=*******
type=peer
secret=*******
port=5060
canreinvite=no
insecure=port,invite
host=gvt.com.br
fromuser=*********
fromdomain=gvt.com.br
dtmfmode=rfc2833
context=entrada-voxip
disallow=all
allow=g729
allow=alaw
qualify=yes
directrtpsetup=yes
t38pt_udptl=yes
t38pt_usertpsource=yes

[9204]
type=friend
secret=******
callerid="" <9204>
host=dynamic
nat=no
canreinvite=yes
insecure=port,invite
qualify=yes
context=ddi
callgroup=1
pickupgroup=1
call-limit=10
disallow=all
allow=g729
allow=alaw
t38pt_udptl=yes
t38pt_usertpsource=yes



Vinícius Fontes
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