D-Link DPH-541 Wireless Wi-Fi IP Phone for $54.99 shipped. Here is a screenshot for your reference. This phone connects through a 802.11b/g wireless network. It supports any SIP-based VoIP provider and is compatible with TelTel, BroadVoice, SIPPhone, and Vonage. More information is available here. As a comparison, Amazon has it for over $190.