Panasonic introduced the KX-TGP base station supporting up to 6 cordless handsets [http://panasonic.net/pcc/products/sipphone/products/kxtgp550_feat.html], essentially a VoIP complement to its popular KX-TGA analogue phones which likewise support up to 4 cordless handsets. However, unlike the analogue system which supports only four handsets in one "conference" on one line, the TGP supports 3 simultaneous network conversations and up to 8 SIP registrations (e.g. up to 8 DID lines or extensions), as well as an Ethernet pass-through port to hook up computers on the same drop. In its publicity Panasonic specifically mentions Digium (founded by the creator of Asterisk), its product Switchvox and Asterisk itself.