Create an account or log into your existing account at http://sipstation.com and purchase at least one trunk along with as many DIDs as you require. Each trunk will allow one simultaneous outbound or inbound call. Please see this wiki on how to create a account and order service.
How quickly will my service be setup once I purchase it?
The trunks and DIDs are activated immediately upon signing up with our service. It usually takes about 60 seconds for them to be provisioned. You can then get your credentials in the portal and you will also get details emailed to you. Your service will be live after that.
You can add and remove DIDs and Call Paths on your account at anytime by logging into http://sipstation.com and under the SIPStation Store tab add or remove your services and press the Check Out button. Please see this wiki on adding services and this wiki on removing services.
Once logged into the http://sipstation.com, click on the Billing tab on the navigation bar above. You can adjust your credit card information there. For step by step instructions you can view this wik article.
How do I cancel all my services?
You can cancel at any time after obtaining the service - without any hassles. It's completely automated. Just click on the Customer Service tab on the navigation bar in the http://sipstation.com and click "Cancel Account". Your cancellation will be processed immediately.