diff --git a/channels/pjsip/dialplan_functions.c b/channels/pjsip/dialplan_functions.c
index 721f47fae6d72830d1615a36a21c3ee41240c1f0..176bc496a8c5162eddcf41ee857857947f5b0fd4 100644
--- a/channels/pjsip/dialplan_functions.c
+++ b/channels/pjsip/dialplan_functions.c
@@ -1680,6 +1680,11 @@ int pjsip_acf_session_refresh_write(struct ast_channel *chan, const char *cmd, c
 		return -1;
 	}
 
+	if (ast_channel_state(chan) != AST_STATE_UP) {
+		ast_log(LOG_WARNING, "'%s' not allowed on unanswered channel '%s'.\n", cmd, ast_channel_name(chan));
+		return -1;
+	}
+
 	if (strcmp(ast_channel_tech(chan)->type, "PJSIP")) {
 		ast_log(LOG_WARNING, "Cannot call %s on a non-PJSIP channel\n", cmd);
 		return -1;
diff --git a/doc/CHANGES-staging/pjsip_send_session_refresh.txt b/doc/CHANGES-staging/pjsip_send_session_refresh.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0705c293d76ee6ba2de2fd5a4bcfbb275ff22dfb
--- /dev/null
+++ b/doc/CHANGES-staging/pjsip_send_session_refresh.txt
@@ -0,0 +1,4 @@
+Subject: chan_pjsip
+
+The PJSIP_SEND_SESSION_REFRESH dialplan function now issues a warning, and
+returns unsuccessful if it's used on a channel prior to answering.