diff --git a/src/mod/endpoints/mod_sofia/mod_sofia.h b/src/mod/endpoints/mod_sofia/mod_sofia.h
index e0833e6b62..db98d8a8d5 100644
--- a/src/mod/endpoints/mod_sofia/mod_sofia.h
+++ b/src/mod/endpoints/mod_sofia/mod_sofia.h
@@ -332,6 +332,7 @@ typedef enum {
 	TFLAG_INB_NOMEDIA,
 	TFLAG_LATE_NEGOTIATION,
 	TFLAG_SDP,
+	TFLAG_NEW_SDP,
 	TFLAG_VIDEO,
 	TFLAG_TPORT_LOG,
 	TFLAG_SENT_UPDATE,
diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index 29742b0a87..87b34dfd31 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -5704,6 +5704,7 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 					sdp_parser_free(parser);
 				}
 				sofia_glue_pass_sdp(tech_pvt, (char *) r_sdp);
+				sofia_set_flag(tech_pvt, TFLAG_NEW_SDP);
 			}
 		}
 	}
@@ -6261,11 +6262,12 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 			}
 		break;
 	case nua_callstate_ready:
-		if (r_sdp && !is_dup_sdp && switch_rtp_ready(tech_pvt->rtp_session) && !sofia_test_flag(tech_pvt, TFLAG_NOSDP_REINVITE)) {
+		if (r_sdp && (!is_dup_sdp || sofia_test_flag(tech_pvt, TFLAG_NEW_SDP)) && switch_rtp_ready(tech_pvt->rtp_session) && !sofia_test_flag(tech_pvt, TFLAG_NOSDP_REINVITE)) {
 			/* sdp changed since 18X w sdp, we're supposed to ignore it but we, of course, were pressured into supporting it */
 			uint8_t match = 0;
 
 			sofia_set_flag_locked(tech_pvt, TFLAG_REINVITE);
+			sofia_clear_flag(tech_pvt, TFLAG_NEW_SDP);
 
 			if (tech_pvt->num_codecs) {
 				match = sofia_glue_negotiate_sdp(session, r_sdp);