Hull VoIP - Wireless mobile VoIP Telephone <<< more info
This phone picks up on hot spots and lets you have true VoIP freedom.
SI-680H IP SIP Wireless VoIP Telephone is a feature rich flexible mobile VoIP phone.
Wireless LAN 802.11b standard compliant .2.4GHz Wireless VoIP Phone .
Integration of voice and data into same source network .
Mobile, Flexible, and Reliable communication at workplace .Wi-Fi 802.11b and WPA Certified .
Monochrome Display .
Security WEP key (64/128 bits), WPA, 802.1x .IEEE 802.11b, Dynamic Rate Scaling at 1, 2, 5.5, 11Mbps .Up to 14 channels depending on regular domain .
Frequency Range: 2.4- 2.497 GHz .SIP Protocol Support .
Supports TCP, UDP, DHCP, DNS, TELNET, FTP .G.711, G.729ab, G.726, G.723.1, SPEEX, Echo cancellation, Jitter buffer, VAD, CNG .QoS supports proprietary EDCF .
Roaming: IEEE802.11f (IAPP) for layer 2 handover; Properietary layer 3 handover