diff -urN asterisk-11.2.1.orig/res/res_fax_spandsp.c asterisk-11.2.1/res/res_fax_spandsp.c
--- asterisk-11.2.1.orig/res/res_fax_spandsp.c	2012-11-05 15:09:30.000000000 -0800
+++ asterisk-11.2.1/res/res_fax_spandsp.c	2013-03-13 16:37:23.949210925 -0700
@@ -544,7 +544,7 @@
 
 	p->stats = &spandsp_global_stats.g711;
 
-	if (s->details->caps & AST_FAX_TECH_T38) {
+	if (s->details->caps & (AST_FAX_TECH_T38 | AST_FAX_TECH_AUDIO)) {
 		if ((s->details->caps & AST_FAX_TECH_AUDIO) == 0) {
 			/* audio mode was not requested, start in T.38 mode */
 			p->ist38 = 1;
@@ -554,9 +554,7 @@
 		/* init t38 stuff */
 		t38_terminal_init(&p->t38_state, caller_mode, t38_tx_packet_handler, s);
 		set_logging(&p->t38_state.logging, s->details);
-	}
 
-	if (s->details->caps & AST_FAX_TECH_AUDIO) {
 		/* init audio stuff */
 		fax_init(&p->fax_state, caller_mode);
 		set_logging(&p->fax_state.logging, s->details);