-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I'm using mod_spandsp and t38gateway function for FAX transport. Some months ago I get it up and running and documented it in FS's wiki. What I forgot is, that I had to modify mod_spanddsp.c in the following way: replace this: switch_ivr_tone_detect_session(session, "t38", "1100.0", "rw", timeout, 1, data, NULL, t38_gateway_start); with this: switch_ivr_tone_detect_session(session, "t38", "2100.0", "rw", timeout, 1, data, NULL, t38_gateway_start); I'm not sure whether this is a dirty hack which works just for my environment, or whether this is a general bug. This difference is the frequency to which the gateways is listening. If I use 1100 the gateway never detects the fax tone which is send by the internal fax device. regards Helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1Bj74ACgkQ4tZeNddg3dzmugCgkLtnqsaBnf5Yhqz/BtDBzh35 gz0AniwyCAtR5gKQZHc0GSmF3nxyhNqR =gI21 -----END PGP SIGNATURE-----