Eventide NexLog 840 - Appendix F: Recording Voip or Roip Calls; Introduction; What Is Voip; The Advantages Voip Provides

144 NexLog Recorder User Manual v2.2.0
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Appendix F: Recording VoIP or RoIP Calls
Introduction
This topic describes information related to recording Real-time Transport
Protocol (RTP) data.
 Voice Over Internet Protocol (VoIP) calls
 Radio Over Internet Protocol (RoIP) calls
NexLog Recorders support both VoIP and RoIP, but this topic mainly describes
VoIP. However, because RoIP is similar to VoIP, much of the information applies
equally to both.
 VoIP station recording for most VoIP phone systems uses the Eventide
VoIP Gateway.
 Cisco 7 and 8 are now supported under the Local VoIP/RTP recording.
 SIP Endpoints are also now supported by Local VoIP/RTP Recording.
 NG9-1-1 “SIP Invite” recording uses the Local VoIP/RTP feature on NexLog
Recorders.
 RoIP recording and IP Dispatch Console recording uses the Local VoIP/RTP
feature on NexLog Recorders.
What is VoIP?
VoIP (Voice over Internet Protocol) is a technology that allows telephone calls to
be made over local area networks (LAN) or the Internet. VoIP systems convert
analog voice signals into digital data packets and supports real-time, two-way
transmission of conversations using the Internet Protocol (IP).
The Advantages VoIP Provides
With traditional telephone service, also known as Plain Old Telephone Service
(POTS), a telephone call is made on an analog telephone line through a pair of
copper wires connected between the caller and the called party. This creates a
physical connection dedicated for a single call, so the conversation is