Get from Amazon.com : http://www.amazon.com/gp/product/B0028A1NRY?tag=hawaiianlegac-20
Grandstream GXW-4004 4 port FXS VoIP Gateway
Support for 2 SIP account profiles caller ID for various countriesregions
Supports PSTNPBX analog telephone sets or analog trunks
Dimension 8Lx125Wx25H
