Published at LXer:

The Linksys PAP2T is an analog telephone adapter (ATA) widely used in VoIP applications to connect an analog phone to a digital IP network. Some PAP2T units are locked and dedicated to a particular VoIP service. Others are capable of using a process called provisioning to ensure that important parameters remain fixed despite local attempts to change them. By employing open source tools such as PHP and MySQL, you can manage these latter kinds of units while they are out in the field. Linksys is helpful in giving the overall approach to provisioning these units. The process consists of creating a special XML file that sits on a server, and instructing the unit to provision itself from that location. The XML file specifies the parameters that control the unit's operation, and their values.

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