Dear sir, Koncept will clearance some old type discountinued VoIP ATA with lowest price from Sept,2009 to Oct 2009. those VoIP ATAs will be very low price, you can feedback us for ask the datasheet and user manual of them. SIP protocol: KTA3000 USD 15/PCS 280pcs stock, 2FXS port, 1WAN+1LAN port(10/100M, router/ bridge function), with full SIP features, but not support T.38 fax, only support pass through fax KTA3100 USD 28/PCS 190pcs stock, 4FXS port, 1WAN port(10/100M), with full SIP features, but not support T.38 fax, only support pass through fax KTA1001 USD 10/PCS 70pcs stock, 1FXS port, 1WAN port(10M), no SIP features, no T.38 or pass through fax thanks yours, Yuxiang Liu Koncept Network Communication Equipment Co., Ltd. Room A2801~2804, Shen Fang Plaza, Ren Min Nan Rd, Luohu, Shenzhen, Guangdong Province, China Tel: 86-755-33387808 ext.809 Mobile: 86-13543317817 Fax: 86-755-33387809 MSN: liu_yuxiang@163.com Mail:lyx@konceptusa.com lyx@konceptproducts.com lyx@konceptproduct.com