If you're referring to outgoing, you need to call CS and there is a charge of $11.99.
If incoming, there is an update coming that will use your address book and will display the name in your address book for the number incoming and display that name and number on your caller id.
The address book update I referred to, I assume will be a premier subscription service.
What I'm referring for the $11.99 charge is if you wanted to change outgoing (or outbound) caller id, what is displayed to someone else when you call them.
http://www.ooma.com/learn/ooma_faq.php? ... eatures#q3
3. Does ooma provide caller-ID service?
ooma provides inbound caller-ID at no extra charge for all calls that come in on a number you've selected from ooma or a number you've ported to ooma. If you're using the ooma system with a landline back-up, however, you'll need to get inbound caller-ID from your landline phone company.
ooma also provides outgoing caller-ID at no extra charge. By default, during activation, your caller-ID will be set to use your last and first names. If you wish to change or personalize an existing outgoing caller-ID name at a later time, you can choose to do so for a one-time charge of $11.99. Acceptable caller-ID names contain some combination of your first name, last name and/or your home business name. New requests and changes for outgoing caller-ID name are processed within 5 business days.