diff --git a/android/src/main/kotlin/xyz/nuark/liblinphone_flutter/LinphoneBridge.kt b/android/src/main/kotlin/xyz/nuark/liblinphone_flutter/LinphoneBridge.kt
index 85b40f7..e7c313e 100644
--- a/android/src/main/kotlin/xyz/nuark/liblinphone_flutter/LinphoneBridge.kt
+++ b/android/src/main/kotlin/xyz/nuark/liblinphone_flutter/LinphoneBridge.kt
@@ -223,7 +223,7 @@ class LinphoneBridge(
         core.uploadBandwidth = 512
         core.downloadBandwidth = 1500
 
-        val preferredAudio = listOf("g729", "opus", "speex", "pcmu", "pcma") // in order of preference
+        val preferredAudio = listOf("g729"/*, "opus", "speex", "pcmu", "pcma"*/) // in order of preference
         val preferredVideo = listOf("h264", "vp8")
 
         core.audioPayloadTypes.forEach { pt: PayloadType ->
@@ -237,10 +237,10 @@ class LinphoneBridge(
             pt.enable(enable)
         }
 
-        core.getPayloadType("opus", -1, 0)?.let { it.normalBitrate = 16 }   // 16 kbps for Opus
-        core.getPayloadType("speex", -1, 0)?.let { it.normalBitrate = 8 }   // 8 kbps for speex
-        core.getPayloadType("h264", -1, 0)?.let { it.normalBitrate = 600 }  // 600 kbps for H264
-        core.getPayloadType("vp8", -1, 0)?.let { it.normalBitrate = 600 }   // 600 kbps for VP8
+        // core.getPayloadType("opus", -1, 0)?.let { it.normalBitrate = 16 }   // 16 kbps for Opus
+        // core.getPayloadType("speex", -1, 0)?.let { it.normalBitrate = 8 }   // 8 kbps for speex
+        // core.getPayloadType("h264", -1, 0)?.let { it.normalBitrate = 600 }  // 600 kbps for H264
+        // core.getPayloadType("vp8", -1, 0)?.let { it.normalBitrate = 600 }   // 600 kbps for VP8
 
         val preferredVidDef = factory.createVideoDefinition(720, 1280)
         core.preferredVideoDefinition = preferredVidDef