Specifications: Archifone100/102 features: Archifone 100/102 is a standard-based VOIP feature phone, works with all standard compliant sip/h.323 proxy and sip/h.323 terminal. 1. Archifone to archifone (peer to peer) is free. 2. Call to worldwide regular phone and mobile phone with dramatically low price. 3. Call hold 4. Call transfer 5. Call forward 6. Call waiting 7.3 party conference 8. Wan/LAN port with router or bridge mode. 9. With firewall Calling rate: China: Usd0.022/min Canada: Usd0.019/min France: Usd0.0195/min Hong kong: Usd0.022/min USA: Usd0.018 If you want to know the other calling rate, please contact with how-san technokogy.