Tdmoip A Scheme For -e1 Simulation Card

The development of IP-based network brings an innovation in the world of communication.The IP technology is more improvable .The price of IP services becomes cheaper and cheaper.Although there are more data services than voice services in current communication network,voice services is still very important.Could we transport TDM data by using IP network which is popular at present? To the new telecom carriers,this is an important problem. People make a lot of research work to coexist TDM services with IP services.For example, VoIP is just one of these new technologies.But the protocols used in VoIP are too complex.And there are still some problems in the compatibility between VoIP and traditionary voice switch network.Is there any more simple and convenient scheme?The answer is positive.It is TDMoIP that we will discuss as follows.The E1 emulation card discussed in this paper is just one kind of TDMoIP equipment.It can be equipped into Ethernet switch in the form of card.And it can accomplish the conversion between TDM data and IP data.Actually, it is a E1 gateway. At the same time, it has the function of switching.As the attaching equipment of switches,it can make the market of swithes become more competitive.Because the E1 emulation card can sustain both traditional TDM service and IP service,it's really a good choice to the new telecom carriers who have large-scale IP network.