Utilize EmojiTextView instead of TextView.

app/src/main/res/layout/webrtc_call_view.xml

@@ -102,7 +102,7 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="@id/call_screen_recipient_name" />
 
-        <TextView
+        <org.thoughtcrime.securesms.components.emoji.EmojiTextView
             android:id="@+id/call_screen_recipient_name"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"