Asterisk commercial support is provided to assist with any area except development, e,g, upgades, training, consultancy and technical support. Support is provided on a best effort basis, and is delivered by email, phone, instant messaging or remote log-in as appropriate. The costs are $100 USD per hour, or a bundle of support for 8 hours valid for one year is available at $600 USD. Please follow this LINK to purchase a support.