Extremely cost-effective, with cutting-edge technology, the ultra-flexible Obihai ATAs & gateways can be configured to be used for many voice and fax applications. Businesses using premise-based open-standard platforms such as Asterisk, FreePBX, PBX in a Flash or other SIP-based systems can leverage the Obihai ATA's phone ports as user phone or fax extensions. Likewise, these devices can be deployed where the business is using a hosted service and needs connections available for phones, fax machines and paging systems. T38fax.com has officially certified these devices after completing rigorous testing, designed to push these devices to their limits.