diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index 90640fcf24..182353f52e 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -4039,7 +4039,16 @@ static void sofia_handle_sip_r_invite(switch_core_session_t *session, int status
 					if (status == 200 && sofia_test_flag(tech_pvt, TFLAG_T38_PASSTHRU)) {
 						if (sip->sip_payload && sip->sip_payload->pl_data) {
 							switch_t38_options_t *t38_options = sofia_glue_extract_t38_options(session, sip->sip_payload->pl_data);
-							sofia_glue_copy_t38_options(t38_options, other_session);  
+
+							if (t38_options) {
+								sofia_glue_copy_t38_options(t38_options, other_session);
+							} else {
+								sofia_clear_flag(tech_pvt, TFLAG_T38_PASSTHRU);
+								switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "Could not parse T.38 options from sdp.\n");
+								switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "T.38 NEGOTIATION ERROR");
+								switch_channel_hangup(channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);
+								goto end;
+							}
 						}
 					}
 
diff --git a/src/mod/endpoints/mod_sofia/sofia_glue.c b/src/mod/endpoints/mod_sofia/sofia_glue.c
index 049859d46a..d78e690797 100644
--- a/src/mod/endpoints/mod_sofia/sofia_glue.c
+++ b/src/mod/endpoints/mod_sofia/sofia_glue.c
@@ -3387,6 +3387,8 @@ void sofia_glue_copy_t38_options(switch_t38_options_t *t38_options, switch_core_
 	switch_channel_t *channel = switch_core_session_get_channel(session);
 	switch_t38_options_t *local_t38_options = switch_channel_get_private(channel, "t38_options");
 
+	switch_assert(t38_options);
+	
 	if (!local_t38_options) {
 		local_t38_options = switch_core_session_alloc(session, sizeof(switch_t38_options_t));
 	}