diff --git a/api/services/telephony/ari_manager.py b/api/services/telephony/ari_manager.py
index 2468972..47e9f30 100644
--- a/api/services/telephony/ari_manager.py
+++ b/api/services/telephony/ari_manager.py
@@ -95,9 +95,7 @@ class ARIConnection:
     async def _mark_ext_channel(self, channel_id: str):
         """Mark a channel as an external media channel we created."""
         r = await self._get_redis()
-        await r.set(
-            f"{_EXT_CHANNEL_KEY_PREFIX}{channel_id}", "1", ex=_CHANNEL_KEY_TTL
-        )
+        await r.set(f"{_EXT_CHANNEL_KEY_PREFIX}{channel_id}", "1", ex=_CHANNEL_KEY_TTL)
 
     async def _is_ext_channel(self, channel_id: str) -> bool:
         """Check if a channel is an external media channel we created."""
@@ -239,7 +237,6 @@ class ARIConnection:
                     f"[ARI org={self.organization_id}] StasisStart for our "
                     f"externalMedia channel {channel_id}, ignoring"
                 )
-                await self._delete_ext_channel(channel_id)
                 return
 
             app_args = event.get("args", [])
@@ -602,6 +599,9 @@ class ARIConnection:
             if keys_to_delete:
                 await self._delete_channel_run(*keys_to_delete)
 
+            # Clean up the Redis marker for external channel
+            await self._delete_ext_channel(ext_channel_id)
+
             logger.info(
                 f"[ARI org={self.organization_id}] StasisEnd full teardown for "
                 f"channel={channel_id}, call={call_id}, ext={ext_channel_id}, bridge={bridge_id}"
diff --git a/ui/src/constants/workflowRunModes.ts b/ui/src/constants/workflowRunModes.ts
index eed3518..b3cced4 100644
--- a/ui/src/constants/workflowRunModes.ts
+++ b/ui/src/constants/workflowRunModes.ts
@@ -9,6 +9,7 @@ export const WORKFLOW_RUN_MODES = {
     CLOUDONIX: 'cloudonix',
     WEBRTC: 'webrtc',
     SMALL_WEBRTC: 'smallwebrtc',
+    ARI: 'ari'
 } as const;
 
 export type WorkflowRunMode = typeof WORKFLOW_RUN_MODES[keyof typeof WORKFLOW_RUN_MODES];