Sipura SPA-3000  Small unit that provides voip and gateway functions.  Interfaces for ethernet, and for "normal analogue telephone (or cordless) and a standard PSTN line.  In technical terms, this has both an FXS and an FXO interface - the FXS interface allows a normal telephone to be turned into an IP phone and the FXO interface provides connectivity to a PSTN line (or of course another voip adapter which is locked by the provider). These interfaces can be configured independantly using the onboard web interface where when you log in as an admin user and switch to advanced mode, there are hundreds of settings ..."  Has instructions for remote control by Asterisk. About $100.  It ought to would work with a virtual machine Asterisk, I suppose.  (Spec sheet here).
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