--- main/sdp_srtp.c	(Asterisk 13.38.1)
+++ main/sdp_srtp.c	(working copy)
@@ -231,2 +231,3 @@ int ast_sdp_crypto_process(struct ast_rt
 {
+	const unsigned int prev_flags = srtp->flags;
 	char *str = NULL;
@@ -489,4 +490,4 @@ int ast_sdp_crypto_process(struct ast_rt
 		}
-	} else if (!memcmp(crypto->remote_key, remote_key, key_len_from_sdp)) {
-		ast_debug(1, "SRTP remote key unchanged; maintaining current policy\n");
+	} else if (prev_flags == srtp->flags && !memcmp(crypto->remote_key, remote_key, key_len_from_sdp)) {
+		ast_debug(1, "SRTP remote suite and key unchanged; maintaining current policy\n");
 		return 0;