Alternatively you could try a bricks and mortar retailer like Harris Technology but you should check they have them in stock before going shopping. The setup guide provided here was orginally authored by Jason. You can purchase the SPA-3000 over the net for about $140. This allows you to use up to 4 additional VSPs on top of your standard VSP.
It therefore allows the owner to access an extended number of VoIP features including: The SPA-3000 is a combined Public Switched Telephone Network ( PSTN) and Analogue Telephone Adaptor ( ATA) device.
