I have a few Linksys PAP2T-NA adapters new in box available. These are the unlocked (never locked) version direct from Linksys. These are 2 line SIP terminal adapters. Specs here along with about 1 million other places. <www.dtnettech.com/store/specifications/cisco%20pap2t-na.pdf> $30 shipped US. PayPal or MO. 73, Steve N4IRS