4
1 Summary
This User Manual now covers the updates made in the following firmware versions. Please upgrade your device
firmware in order to be able to use the new features described in this manual.
Model
# of Lines / Channels
Firmware Version
GoIP-1. GoIP-1i
1
Not available yet
GoIP-4, GoIP-4i
4
GS-4.01-95
GoIP-8
8
GS-4.01-95
GST1610-1.01-55
WoIP-8
8
GST1610-1.01-55
GoIP-16
16
GST-1.01-67
GST1610-1.01-55
GoIP-32
32
GST1610-1.01-55
2 Special Notes
WoIP-8 is a newly introduced model that supports voice calls via a 3G Cellular Network (UMTS-WCDMA and
GSM). It operates at the frequencies specified below.
1. UMTS (WCDMA/FDD)
：
850/900/1900/2100 MHz
2. GSM
：
850/900/1800/1900 MHz
Since WoIP-8 operates at slightly different frequencies than those used in GoIP-8 (2G), the antennas supplied with
the WoIP-8 cannot be replaced with the one used in the GoIPs. Otherwise, WoIP-8 may encounter poor signal
reception which causing poor performance. Please note that the antenna for WoIP-8 is about 4 inches long and the
one for GoIP-8 is just 2 inches long.
The device configurations for WoIP is in general the same as those in GoIPs.
3
General
3.1 Introduction
GoIP and WoIP are abbreviated from GSM over IP and WCDMA over IP respectively. They are new types of
VoIP gateway that allows call terminations from a VoIP network to cellular networks and vice versa. Call
connections between IP networks and cellular networks are now bridged seamlessly to extend the voice
communication coverage significantly. As the traditional PSTN lines are starting to disappear in developed
countries and are not going to be built extensively in under-developed countries, GSM/WCDMA phones are
getting more and more popular all over the world with lower and lower service charges, the emergence of
GoIP and WoIP bridge the gap between the traditional telephone networks and VoIP networks as shown in the
diagram below. As a result, local and worldwide voice communications are more convenience, lower cost,
and broader coverage.
Summary of Contents for GoIP
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