I compiled mod_fax and enabled it in the freeswitch config. I tried sending a test fax to 9978 and 9979, and get this error for both: 2009-05-02 13:35:08 [NOTICE] switch_channel.c:597 switch_channel_set_name() New Channel sofia/internal/1001@10.128.0.10 [317b59c6-157b-479b-8fb0-f80453f67355] 2009-05-02 13:35:08 [INFO] mod_dialplan_xml.c:252 dialplan_hunt() Processing Fax Extension->9978 in context default 2009-05-02 13:35:08 [NOTICE] mod_dptools.c:649 answer_function() Channel [sofia/internal/1001@10.128.0.10] has been answered 2009-05-02 13:35:09 [ERR] sofia.c:3217 sofia_handle_sip_i_state() Reinvite Codec Error! I'm using Zoiper to send the fax. Any ideas why this is failing? -- jay austad | 612.423.1433 | austad@signal15.com