diff --git a/coreapi/linphonecore.h b/coreapi/linphonecore.h
index d2860c3a2..0bca75ce9 100644
--- a/coreapi/linphonecore.h
+++ b/coreapi/linphonecore.h
@@ -792,6 +792,8 @@ int linphone_core_enable_payload_type(LinphoneCore *lc, PayloadType *pt, bool_t
 
 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate) ;
 
+int linphone_core_get_payload_type_number(LinphoneCore *lc, PayloadType *pt);
+
 const char *linphone_core_get_payload_type_description(LinphoneCore *lc, PayloadType *pt);
 
 bool_t linphone_core_check_payload_type_usability(LinphoneCore *lc, PayloadType *pt);
diff --git a/coreapi/misc.c b/coreapi/misc.c
index ea85f1036..41d4efac8 100644
--- a/coreapi/misc.c
+++ b/coreapi/misc.c
@@ -202,6 +202,10 @@ int linphone_core_enable_payload_type(LinphoneCore *lc, PayloadType *pt, bool_t
 	return -1;
 }
 
+int linphone_core_get_payload_type_number(LinphoneCore *lc, PayloadType *pt){
+       return payload_type_get_number(pt);
+}
+
 const char *linphone_core_get_payload_type_description(LinphoneCore *lc, PayloadType *pt){
 	if (ms_filter_codec_supported(pt->mime_type)){
 		MSFilterDesc *desc=ms_filter_get_encoder(pt->mime_type);