diff --git a/design/backend/sequence/inner/analytics-대시보드조회.puml b/design/backend/sequence/inner/analytics-대시보드조회.puml
index bdfd31e..785eaa7 100644
--- a/design/backend/sequence/inner/analytics-대시보드조회.puml
+++ b/design/backend/sequence/inner/analytics-대시보드조회.puml
@@ -117,8 +117,8 @@ else Cache MISS
 
     note right of Service
         **병렬 처리 시작**
-        - CompletableFuture 3개 생성
-        - 우리동네TV, 지니TV, SNS APIs 동시 호출
+        - CompletableFuture 4개 생성
+        - 우리동네TV, 지니TV, 링고비즈, SNS APIs 동시 호출
         - Circuit Breaker 적용 (채널별 독립)
     end note
 
@@ -188,6 +188,41 @@ else Cache MISS
             deactivate ChannelService
         end
 
+    else
+
+        Service -> ChannelService: getRingoBizStats(eventId)
+        activate ChannelService
+
+        ChannelService -> CB: execute("ringoBiz", () -> callAPI())
+        activate CB
+
+        note right of CB
+            **Circuit Breaker**
+            - State: CLOSED (정상)
+            - Failure Rate: 50% 초과 시 OPEN
+            - Timeout: 10초
+        end note
+
+        CB -> CB: 외부 API 호출\nGET /voice-stats/{eventId}
+
+        alt 정상 응답
+            CB --> ChannelService: ChannelStats\n- calls: 3000\n- completed: 2500\n- avgDuration: 45초
+            deactivate CB
+            ChannelService --> Service: RingoBizStats
+            deactivate ChannelService
+        else Timeout 또는 장애
+            CB -> CB: **Fallback 실행**\n기본값 반환
+            note right of CB
+                링고비즈 API 장애:
+                - 기본값 (0) 반환
+                - 알림: "링고비즈 데이터 로딩 실패"
+            end note
+            CB --> ChannelService: 기본값 (0)
+            deactivate CB
+            ChannelService --> Service: RingoBizStats (기본값)
+            deactivate ChannelService
+        end
+
     else
 
         Service -> ChannelService: getSNSStats(eventId)
@@ -229,13 +264,14 @@ else Cache MISS
     |||
     == 3. 데이터 통합 및 ROI 계산 ==
 
-    Service -> Service: mergeChannelStats(\n  wooriTV, genieTV, sns\n)
+    Service -> Service: mergeChannelStats(\n  wooriTV, genieTV, ringoBiz, sns\n)
 
     note right of Service
         **데이터 통합**
         - 총 노출 수 = 외부 채널 노출 합계
         - 총 참여자 수 = Analytics DB
         - 채널별 전환율 = 참여자 수 / 노출 수
+        - 링고비즈: 통화 완료 수 포함
     end note
 
     Service -> Calculator: calculateROI(\n  eventStats, channelStats\n)