BT206-IP Phone (2-1)
Features:
1. Support SIP 2.0 (RFC3261) and correlative RFCs
2. Codec?G.711 A/U Law, G.723.1, G.729a/b, G.722,G.722.1, G.726-32
3. Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone
4. Support Voice Gain Set... - Update: 2011-12-19