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Chapter 8: VoIP Settings
VoIP stands for Voice over Internet Protocol. By using VoIP technology you can
effectively use the internet to make phone calls. This is done by placing the voice
calls on the network by encrypting a voice call into data packets at one end and then
decrypting it back into voice calls at the other end. This encryption and decryption is
from a analog signal (your voice) into a digital signal (data packets) and then back
into an analog signal.
The Pesonal Mobile Gateway uses Session Initiation Protocol (SIP) as the control
mechanism that sets up, initiates, and terminates calls between a caller and a called
party. The SIP messaging makes use of "Proxy," "Redirect," and "Registration"
servers to process call requests and find the location of called parties across the
Internet. When SIP has set up a call between two parties, the actual voice
communication is a direct peer-to-peer connection using the standard Real-Time
Protocol (RTP), which streams the encoded voice data across the network.
You can make VoIP calls by using a regular phone with the Pocket VoIP Gateway.
You can also make VoIP calls from your computer using a VoIP application with a
simple microphone and computer speakers. However, using IP telephones or VoIP
boxes provides an experience identical to normal telephoning. Many manufacturers
are designing phones which are specially meant to work with this technology, called
a SIP phone.
The configuration of VoIP settings is available in all operating modes.
The VoIP configuration pages include the following options.
Menu
SIP Settings
Advanced Settings
Table 8-1. VoIP Settings
Description
Configures SIP parameters
Configures call forwarding and DTMF parameters
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