[Freeswitch-users] SIP alaw to SIP T.38 gateway

Weera Suriya weerasuri at gmail.com
Tue Jul 20 08:16:58 PDT 2010


Hello list,
I have a question about t.38 fax gateway feature in FS(mod_spandsp).
here is my setup.
PSTN  <----SS7--->YATE(doesn't support T.38 fax
gateway)<----IAX2--alaw---->CallWeaver-Faxgateway<------SIP--T.38------->OpenSIPs<------->ATAs(T.38)<---->fax
machines
I've 16 E1s connected with my Yate server and Yate server send faxes to
Callweaver servers (6 servers for CallWeaver) via IAX2(alaw) . then
CallWeaver servers send faxes to OpenSIPs server via  SIP T.38 and OpenSIPs
server send SIP calls to ATAs

Now I want to expand this setup by adding 16 more E1 connections and I want
to replace these 6 CallWeaver servers with one or two FreeSwitch :) I would
like to know one thing. does FS able to convert SIP alaw fax (or IAX2 alaw
fax) into SIP T.38 fax (I know TDM to SIP t.38 works with FS)


Thank you.

Weera Suriya
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