diff --git a/tests/test_radio.c b/tests/test_radio.c
index 4a66e8a9..8e4900b7 100644
--- a/tests/test_radio.c
+++ b/tests/test_radio.c
@@ -664,6 +664,18 @@ static void rad_tick(void* arg) {
                 now - t->call_started < RADIO_CALL_RING_TB || now - t->call_started > RADIO_CALL_RING_TB + 1000) goto phone_failed;
             call_set_phone_state(C, 0, 0);
             DEBUG_INFO(DEBUG_CATEGORY_RADIO, "phone policy passed: hidden/published BGP, warn, override with loss, reject, independent blocks, 60s choice");
+            radio_set_active(C, gid, 1);
+            call_set_phone_state(C, 2, CALL_POLICY_BLOCK_RADIO | CALL_POLICY_WARN_PHONE | CALL_POLICY_REJECT_PHONE);
+            g_drop_result = 1; g_drop_ack = 1;
+            radio_action(A, 114, RADIO_CALL_START, nc); ++t->call_step; break;
+        case 21:
+            if (!g_calls[14][IDX_A].finished) break;
+            if (g_calls[14][IDX_A].reason != RADIO_CALL_ALREADY_ACTIVE || g_calls[14][IDX_C].incoming ||
+                !radio_is_active(C, gid) || radio_is_active(A, gid)) goto phone_failed;
+            radio_action(A, 114, RADIO_CALL_CONTINUE, 0);
+            radio_set_active(C, gid, 0);
+            call_set_phone_state(C, 0, 0);
+            DEBUG_INFO(DEBUG_CATEGORY_RADIO, "already-active reply delivered with RESULT/ACK loss, no incoming event and no caller radio activation");
             t->phase = P_RADIO_ON; break;
         phone_failed:
             DEBUG_ERROR(DEBUG_CATEGORY_RADIO, "phone policy failed step=%d force_drops_left=%d incoming108=%d state108=%d reason108=%d",
diff --git a/tools/chatgui/translations/chatgui_en.ts b/tools/chatgui/translations/chatgui_en.ts
index e57a8cb4..0f8e0e2b 100644
--- a/tools/chatgui/translations/chatgui_en.ts
+++ b/tools/chatgui/translations/chatgui_en.ts
@@ -3,6 +3,7 @@
 <TS version="2.1" language="en_US" sourcelanguage="en_US">
 <context>
     <name>ChatGui</name>
+    <message><source>Subscriber's radio is already on in this channel</source><translation>Subscriber's radio is already on in this channel</translation></message>
     <message><source>Subscriber is on a phone call</source><translation>Subscriber is on a phone call</translation></message>
     <message><source>Call anyway</source><translation>Call anyway</translation></message>
     <message><source>Phone status unknown</source><translation>Phone status unknown</translation></message>
diff --git a/tools/chatgui/translations/chatgui_ru.ts b/tools/chatgui/translations/chatgui_ru.ts
index bbbf565f..dcd48461 100644
--- a/tools/chatgui/translations/chatgui_ru.ts
+++ b/tools/chatgui/translations/chatgui_ru.ts
@@ -3,6 +3,7 @@
 <TS version="2.1" language="ru_RU" sourcelanguage="en_US">
 <context>
     <name>ChatGui</name>
+    <message><source>Subscriber's radio is already on in this channel</source><translation>Рация абонента уже включена в этом канале</translation></message>
     <message><source>Subscriber is on a phone call</source><translation>Абонент разговаривает по телефону</translation></message>
     <message><source>Call anyway</source><translation>Всё равно позвонить</translation></message>
     <message><source>Phone status unknown</source><translation>Статус телефона неизвестен</translation></message>