diff --git a/main/format_cap.c b/main/format_cap.c
index 15b9f9cbb2..4dc8e49147 100644
--- a/main/format_cap.c
+++ b/main/format_cap.c
@@ -39,7 +39,6 @@
 #include "asterisk/vector.h"
 #include "asterisk/linkedlists.h"
 #include "asterisk/utils.h"
-#include "asterisk/rtp_engine.h"
 
 /*! \brief Structure used for capability formats, adds framing */
 struct format_cap_framed {
@@ -235,7 +234,7 @@ int ast_format_cap_append_by_type(struct ast_format_cap *cap, enum ast_media_typ
 
 		format = ast_format_cache_get_by_codec(codec);
 
-		if (format == ast_format_none || !ast_rtp_lookup_sample_rate2(1, format, 0)) {
+		if (format == ast_format_none) {
 			ao2_ref(format, -1);
 			ao2_ref(codec, -1);
 			continue;
@@ -366,13 +365,10 @@ int ast_format_cap_update_by_allow_disallow(struct ast_format_cap *cap, const ch
 		}
 		all = strcasecmp(this, "all") ? 0 : 1;
 
-		if (!all) {
-			format = ast_format_cache_get(this);
-			if (!format || !ast_rtp_lookup_sample_rate2(1, format, 0)) {
-				ast_log(LOG_WARNING, "Cannot %s unknown format '%s'\n", iter_allowing ? "allow" : "disallow", this);
-				res = -1;
-				continue;
-			}
+		if (!all && !(format = ast_format_cache_get(this))) {
+			ast_log(LOG_WARNING, "Cannot %s unknown format '%s'\n", iter_allowing ? "allow" : "disallow", this);
+			res = -1;
+			continue;
 		}
 
 		if (cap) {