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internal companion object {
    const val TELECOM_NOTIFICATION_ID = 200
    const val TELECOM_NOTIFICATION_ACTION = "telecom_action"
    const val TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID = "telecom_incoming_channel"
    const val TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID = "telecom_ongoing_channel"

    private val ringToneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE)
}

val incomingChannel = NotificationChannelCompat.Builder(
        TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID,
        NotificationManagerCompat.IMPORTANCE_HIGH,
    ).setName("Incoming calls")
        .setDescription("Handles the notifications when receiving a call")
        .setVibrationEnabled(true).setSound(
            ringToneUri,
            AudioAttributes.Builder()
                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                .setLegacyStreamType(AudioManager.STREAM_RING)
                .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE).build(),
        ).build()

val ongoingChannel = NotificationChannelCompat.Builder(
        TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID,
        NotificationManagerCompat.IMPORTANCE_DEFAULT,
    )
    .setName("Ongoing calls")
    .setDescription("Displays the ongoing call notifications")
    .build()

// on the notification
val contentIntent = PendingIntent.getActivity(
    /* context = */ context,
    /* requestCode = */ 0,
    /* intent = */ Intent(context, TelecomCallActivity::class.java),
    /* flags = */ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
)