developed rapidly in a brief period. Many

 softwaredevelopers currently offer PC

 However, more importantly, gateway servers are rising to

 act as an interface between the Internet and the PSTN

 hone Networ k). With voice-processing cards, these gateway servers allow Internet telephony VoIP(It expa

 nds as Voice Over Internet protocol) users to communicate through traditional telephones over long distan es without e

 xceeding "Long Distance" telephone network. A telephone call travels from the local PSTN to the nearest gateway server,  which digitizes

 Voice ove r Internet Protocol (VoIP) is becoming a substitute to traditional telephone service.

 The goal o  VoIP Deployment is to receive the registered location information of a VoIP user to the most suitable p ublic  safety answering point (PSAP) through statewide standards using the 9-1-1 network.Most VSPs will perform with a  database provider known as a Voice Positioning Center (VPC

 ) and have access to 9-1-1 network through an Emergency Services Gateway (ESGW). VPCs are utilize

 d to upda te and store registered user location information. . It then imparts the details to PSAPs when a  9-1-1 c

 all is rendered. ESGWs are those Competitive Local Exchange Carriers (CLECs) that supplythe  

 Initially regarded as just a novelty, Internet telephony is attracting a number of users due to the fa

 that itoffers remarkable cost savings relative to the PSTN. Internet telephony service users can sidesteplong-distance t  eephone

 carriers and their per-minute usage rates as they run their voice traffic over the In

 ternet for a simple, flat monthly Internet-access fee. VoIP Internet telephony provides a viable threat to theprovid

 ers of long-established telephone services that should stimulate enhancements in function and cost throughout the industry.

 On top of the game are Gizmo Project and Skype which rely on a software client on the PC to place a call

 over the network. This is where one user ID can be used on different computers or in different locations on a laptop. In the  middle are VoIP Internet telephony services like Vonage or BroadVoice which also provide a telephone adapter for  connecting to the broadband connection similar to Internet telephony services offered by broadband providers, but which  are targeted towards sophisticated users and enables portability from one location to the next.