--- main/pbx_variables.orig	2021-01-10 12:02:51.220040938 +0100
+++ main/pbx_variables.c	2021-01-10 12:18:51.309314729 +0100
@@ -1126,7 +1126,8 @@
 
 int pbx_builtin_setvar(struct ast_channel *chan, const char *data)
 {
-	char *name, *value, *mydata;
+	char *name, *value, *mydata, *scan;
+	int paren = 0, quote = 0, bracket = 0;
 
 	if (ast_strlen_zero(data)) {
 		ast_log(LOG_WARNING, "Set requires one variable name/value pair.\n");
@@ -1134,8 +1135,36 @@
 	}
 
 	mydata = ast_strdupa(data);
-	name = strsep(&mydata, "=");
-	value = mydata;
+
+	scan=mydata;
+	name=NULL;
+	value=NULL;
+        
+	for (; *scan; scan++) {
+          if (*scan == '(') {
+            paren++;
+          } else if (*scan == ')') {
+            if (paren) {
+              paren--;
+            }
+          } else if (*scan == '[') {
+            bracket++;
+          } else if (*scan == ']') {
+            if (bracket) {
+              bracket--;
+            }
+          } else if (*scan == '"') {
+            quote = quote ? 0 : 1;
+          } else if (*scan == '\\') {
+            scan++;
+          } else if ((*scan == '=') && !paren && !quote && !bracket) {
+            *scan++ = '\0';
+            value=scan;
+            name=mydata;
+            break;
+          }
+        }
+
 	if (!value) {
 		ast_log(LOG_WARNING, "Set requires an '=' to be a valid assignment.\n");
 		return 0;