--- asterisk-18.11.3/apps/app_audiosocket.c	2022-04-26 18:32:12.000000000 +0200
+++ asterisk-18.11.3-patched/apps/app_audiosocket.c	2022-09-14 13:41:36.981532393 +0200
@@ -207,6 +207,12 @@ static int audiosocket_run(struct ast_ch
 					"channel %s\n", chanName);
 				return -1;
 			}
+			/* horrible hack */
+			if (f->src && strcmp(f->src, "AudioSocket_closed") == 0) {
+				ast_log(LOG_WARNING, "AudioSocket closed remotely on channel %s\n", chanName);
+				ast_frfree(f);
+				return 0;
+			}
 			if (ast_write(chan, f)) {
 				ast_log(LOG_WARNING, "Failed to forward frame to channel %s\n", chanName);
 				ast_frfree(f);
--- asterisk-18.11.3/res/res_audiosocket.c	2022-04-26 18:32:12.000000000 +0200
+++ asterisk-18.11.3-patched/res/res_audiosocket.c	2022-09-14 13:37:23.533849654 +0200
@@ -257,7 +257,10 @@ struct ast_frame *ast_audiosocket_receiv
 	}
 	if (kind == 0x00) {
 		/* AudioSocket ended by remote */
-		return NULL;
+		/* horrible hack */
+		f.src = "AudioSocket_closed";
+		f.mallocd = 0;
+		return ast_frisolate(&f);
 	}
 	if (kind != 0x10) {
 		/* read but ignore non-audio message */