diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
index 5e440293..03195b7f 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
@@ -1957,8 +1957,8 @@ private fun CallRow(
                             alertTitle.value = ctx.getString(R.string.call_info)
                             alertMessage.value =
                                 "${String.format(ctx.getString(R.string.duration), duration)}\n" +
-                                        "${ctx.getString(R.string.codecs)}: tx ${txCodec[0]} ${txCodec[1]}Hz ${txCodec[2]}ch\n " +
-                                        "    rx ${rxCodec[0]} ${rxCodec[1]}Hz ${rxCodec[2]}ch\n" +
+                                        "${ctx.getString(R.string.codecs)}: \u2192 ${txCodec[0]} ${txCodec[1]}Hz ${txCodec[2]}ch /\n " +
+                                        "    \u2190 ${rxCodec[0]} ${rxCodec[1]}Hz ${rxCodec[2]}ch\n" +
                                         "${String.format(ctx.getString(R.string.rate), parts[0])}\n" +
                                         "${String.format(ctx.getString(R.string.average_rate), parts[1])}\n" +
                                         "${ctx.getString(R.string.packets)}: ${parts[2]}\n" +