diff --git a/media/libaudiohal/impl/DeviceHalAidl.cpp b/media/libaudiohal/impl/DeviceHalAidl.cpp
index e55ad14..e22acc4 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalAidl.cpp
@@ -293,6 +293,9 @@
     if (status_t status = filterAndUpdateScreenParameters(parameters); status != OK) {
         ALOGW("%s: filtering or updating screen parameters failed: %d", __func__, status);
     }
+    if (status_t status = filterAndUpdateTelephonyParameters(parameters); status != OK) {
+        ALOGW("%s: filtering or updating telephony parameters failed: %d", __func__, status);
+    }
     return parseAndSetVendorParameters(mVendorExt, mModule, parameters);
 }
 
@@ -1351,6 +1354,52 @@
     return OK;
 }
 
+status_t DeviceHalAidl::filterAndUpdateTelephonyParameters(AudioParameter &parameters) {
+    TIME_CHECK();
+    using TtyMode = ITelephony::TelecomConfig::TtyMode;
+    ITelephony::TelecomConfig telConfig;
+    (void)VALUE_OR_RETURN_STATUS(filterOutAndProcessParameter<String8>(
+                    parameters, String8(AudioParameter::keyTtyMode),
+                    [&telConfig](const String8& mode) {
+                        if (mode == AudioParameter::valueTtyModeOff) {
+                            telConfig.ttyMode = TtyMode::OFF;
+                            return OK;
+                        } else if (mode == AudioParameter::valueTtyModeFull) {
+                            telConfig.ttyMode = TtyMode::FULL;
+                            return OK;
+                        } else if (mode == AudioParameter::valueTtyModeHco) {
+                            telConfig.ttyMode = TtyMode::HCO;
+                            return OK;
+                        } else if (mode == AudioParameter::valueTtyModeVco) {
+                            telConfig.ttyMode = TtyMode::VCO;
+                            return OK;
+                        }
+                        ALOGE("setParameters: parameter key \"%s\" has invalid value \"%s\"",
+                                AudioParameter::keyTtyMode, mode.c_str());
+                        return BAD_VALUE;
+                    }));
+    (void)VALUE_OR_RETURN_STATUS(filterOutAndProcessParameter<String8>(
+                    parameters, String8(AudioParameter::keyHacSetting),
+                    [&telConfig](const String8& onOrOff) {
+                        if (onOrOff == AudioParameter::valueHacOn) {
+                            telConfig.isHacEnabled = Boolean{ .value = true };
+                            return OK;
+                        } else if (onOrOff == AudioParameter::valueHacOff) {
+                            telConfig.isHacEnabled = Boolean{ .value = false };
+                            return OK;
+                        }
+                        ALOGE("setParameters: parameter key \"%s\" has invalid value \"%s\"",
+                                AudioParameter::keyHacSetting, onOrOff.c_str());
+                        return BAD_VALUE;
+                    }));
+    if (mTelephony != nullptr && telConfig != ITelephony::TelecomConfig{}) {
+        ITelephony::TelecomConfig newTelConfig;
+        return statusTFromBinderStatus(
+                mTelephony->setTelecomConfig(telConfig, &newTelConfig));
+    }
+    return OK;
+}
+
 status_t DeviceHalAidl::findOrCreatePatch(
         const AudioPatch& requestedPatch, AudioPatch* patch, bool* created) {
     std::set<int32_t> sourcePortConfigIds(requestedPatch.sourcePortConfigIds.begin(),
diff --git a/media/libaudiohal/impl/DeviceHalAidl.h b/media/libaudiohal/impl/DeviceHalAidl.h
index e0b0981..2e393c7 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.h
+++ b/media/libaudiohal/impl/DeviceHalAidl.h
@@ -220,6 +220,7 @@
     status_t filterAndUpdateBtLeParameters(AudioParameter &parameters);
     status_t filterAndUpdateBtScoParameters(AudioParameter &parameters);
     status_t filterAndUpdateScreenParameters(AudioParameter &parameters);
+    status_t filterAndUpdateTelephonyParameters(AudioParameter &parameters);
     status_t findOrCreatePatch(
         const std::set<int32_t>& sourcePortConfigIds,
         const std::set<int32_t>& sinkPortConfigIds,