... V2 3,VLAN and QoS suooport 4,NAT Transversal 5,Router . Product Introduction:The GSM Fixed Wireless Terminal 1 ports ... comprehensive jitter buffer VLAN and QoS support NAT Transversal and Router functionsVoice prompts, HTTP Web, Auto Provision support for configuration ... /DC Adapter) Warranty: one yearExample: peer to peer:it is a new function that you can use our voip without platform,what is more ...