Yes, you certainly can. You will first need to upload your mobile contact list by following the steps below:

1. Open the Hoiio mobile app

2. Select More

3. Select Upload contacts

4. Press Upload

Your contacts will be uploaded to http://www.hoiio.com. The next time you log on to your account at www.hoiio.com, click on “Phonebook” to view your uploaded mobile contact list. You are now able to Call or SMS your contacts anywhere with Hoiio.