diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/call/CallCandidate.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/call/CallCandidate.kt
index 0d7a0d1d26..80f7d56bd4 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/call/CallCandidate.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/call/CallCandidate.kt
@@ -24,13 +24,13 @@ data class CallCandidate(
         /**
          * Required. The SDP media type this candidate is intended for.
          */
-        @Json(name = "sdpMid") val sdpMid: String,
+        @Json(name = "sdpMid") val sdpMid: String? = null,
         /**
          * Required. The index of the SDP 'm' line this candidate is intended for.
          */
-        @Json(name = "sdpMLineIndex") val sdpMLineIndex: Int,
+        @Json(name = "sdpMLineIndex") val sdpMLineIndex: Int = 0,
         /**
          * Required. The SDP 'a' line of the candidate.
          */
-        @Json(name = "candidate") val candidate: String
+        @Json(name = "candidate") val candidate: String? = null
 )
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/call/model/MxCallImpl.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/call/model/MxCallImpl.kt
index 2103ce196a..c6ffcbcd28 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/call/model/MxCallImpl.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/call/model/MxCallImpl.kt
@@ -105,6 +105,7 @@ internal class MxCallImpl(
     }
 
     override fun sendLocalIceCandidates(candidates: List<CallCandidate>) {
+        Timber.v("Send local ice canditates $callId: $candidates")
         CallCandidatesContent(
                 callId = callId,
                 partyId = ourPartyId,
diff --git a/vector/src/main/java/im/vector/app/features/call/webrtc/WebRtcCall.kt b/vector/src/main/java/im/vector/app/features/call/webrtc/WebRtcCall.kt
index 3b4efbe60a..0f5518c64c 100644
--- a/vector/src/main/java/im/vector/app/features/call/webrtc/WebRtcCall.kt
+++ b/vector/src/main/java/im/vector/app/features/call/webrtc/WebRtcCall.kt
@@ -729,6 +729,9 @@ class WebRtcCall(val mxCall: MxCall,
     fun onCallIceCandidateReceived(iceCandidatesContent: CallCandidatesContent) {
         GlobalScope.launch(dispatcher) {
             iceCandidatesContent.candidates.forEach {
+                if (it.sdpMid.isNullOrEmpty() || it.candidate.isNullOrEmpty()) {
+                    return@forEach
+                }
                 Timber.v("## VOIP onCallIceCandidateReceived for call ${mxCall.callId} sdp: ${it.candidate}")
                 val iceCandidate = IceCandidate(it.sdpMid, it.sdpMLineIndex, it.candidate)
                 remoteCandidateSource.onNext(iceCandidate)