diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 3775551..4b767b5 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -4872,11 +4872,15 @@
     //      use device for strategy DTMF
     // 9: the strategy for beacon, a.k.a. "transmitted through speaker" is active on the output:
     //      use device for strategy t-t-s
+
+    // FIXME: extend use of isStrategyActiveOnSameModule() to all strategies
+    // with a refined rule considering mutually exclusive devices (using same backend)
+    // as opposed to all streams on the same audio HAL module.
     if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE) &&
         mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
         device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
     } else if (isInCall() ||
-                    isStrategyActive(outputDesc, STRATEGY_PHONE)) {
+               isStrategyActiveOnSameModule(outputDesc, STRATEGY_PHONE)) {
         device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION)) {
         device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
@@ -5884,6 +5888,20 @@
     return false;
 }
 
+bool AudioPolicyManager::isStrategyActiveOnSameModule(const sp<AudioOutputDescriptor>& outputDesc,
+                                          routing_strategy strategy, uint32_t inPastMs,
+                                          nsecs_t sysTime) const
+{
+    for (size_t i = 0; i < mOutputs.size(); i++) {
+        sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
+        if (outputDesc->sharesHwModuleWith(desc)
+            && isStrategyActive(desc, strategy, inPastMs, sysTime)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage)
 {
     return mEngine->getForceUse(usage);
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index b954714..48e0472 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -321,6 +321,10 @@
         bool isStrategyActive(const sp<AudioOutputDescriptor>& outputDesc, routing_strategy strategy,
                               uint32_t inPastMs = 0, nsecs_t sysTime = 0) const;
 
+        bool isStrategyActiveOnSameModule(const sp<AudioOutputDescriptor>& outputDesc,
+                                                  routing_strategy strategy, uint32_t inPastMs = 0,
+                                                  nsecs_t sysTime = 0) const;
+
         // change the route of the specified output. Returns the number of ms we have slept to
         // allow new routing to take effect in certain cases.
         virtual uint32_t setOutputDevice(const sp<AudioOutputDescriptor>& outputDesc,