Zed-3 GS8 Instrukcja Użytkownika Pobierz pdf (Strona 2)

Hardware and Telephony

The GS8 modular gateway can be mounted in a 19” rack

and has four slots into which you can plug any interface

module. The GSM, CDMA, and FXS modules have one port

(or circuit) each; the FXO module has two ports (circuits).

The FXS port can connect to analog telephones or to a

PBX (in which case, it appears as the telephone exchange).

The FXO port connects as a subscriber to your PBX or to

the telephone exchange.

If you have a single wireless module, you may be able to

connect a small antenna directly to the module. However,

for better reception, you may want to use an external an-

tenna, connected with coaxial cable to the module. If you

have multiple modules, you should use the antenna split-

ter (combiner) and then use a single external antenna.

SIP Operation

There are two working modes in which the GS8 modular

gateway connects with other SIP devices, including inter-

connection with other GS8 modular gateways.

The basic working mode is similar to that of a SIP phone

in which the GS8 modular gateway registers to another

SIP device, such as a soft switch or IP PBX.

The second working mode is to connect to other SIP de-

vices without registration. This permits the GS8 modular

gateway to operate independently of an IP PBX and also

permits the clustering of GS8 modular gateways to trans-

parently create a virtual gateway that has more than four

wireless ports.

SMS and MMS

The GSM and CDMA modules can send and receive SMS

text messages and MMS multimedia messages to or from

a mobile phone. These are transmitted over the Ethernet

port as SIP MESSAGE messages to ensure compatibility

with a variety of different SIP PBXs. You determine for

each module the destination of received SMS or MMS

messages and you can program that SMS and MMS mes-

sages are always sent to a person who sent an SMS or

MMS to that phone number within a speciﬁed time.

The GS8 modular gateway can send and receive text

messages in 7 bit mode (160 characters per message) or

in Unicode (70 characters per message). It can send and

receive multimedia messages comprising images and

rich text that are limited to 30 KB. The sending or receiv-

ing client is responsible for formatting or interpreting the

message to OMA speciﬁcations.

IVR (Interactive Voice Response)

The GS8 modular gateway has an IVR function that can

prompt callers. This can be enabled or disabled separately

for the IP, FXO, GSM, and CDMA ports.

When enabled, it provides authentication and two stage

dialling. A call is answered by the GS8 modular gateway

which then prompts the caller to enter a password, a

number, or both, depending on your criteria. When calls

are received on the speciﬁc interface, the GS8 modular

gateway will verify the password (if programmed), and

collect the destination phone number. The call is then

routed according to the routing table in the same way it

would be if the IVR was not enabled on that port.

System Administration

The GS8 modular gateway has an HTML based adminis-

tration UI so that it is not necessary to install any manage-

ment software on a PC. The administration UI is intuitive

and easy to navigate. You can access and manage the GS8

modular gateway from anywhere as long as you have a

web browser and access to the Internet.

The administration UI provides various real time informa-

tion and statistics of the GS8 modular gateway. These

include operation state, system and network information,

events and alarms, line status, and comprehensive call

detail records (CDRs).

Data Networking

Most IP networks existing today support VLAN and QoS

and using these features can increase the voice quality of

phone calls. The GS8 modular gateway fully supports IEEE

802.1Q VLAN tagging and IEEE 802.1p QoS. At the IP layer,

the GS8 modular gateway supports the ability to mark

the lower six bits of the IP QoS byte with the various dif-

ferentiated service code point (DSCP) markings.

Diagnostics and SNMP

The system chassis has two LEDs on the front to indicate

the status and two LEDs on the Ethernet port. The wire-

less modules have two LEDs to indicate status and the

analog modules have a single LED per port to indicate

when a call is in progress.

The system provides ping, traceroute, and DNS lookup

for network diagnostics. These tools will help you identify

most networking problems. To identify call setup prob-

lems, the system also provides a SIP Route Trace diagnos-

tic tool.

The GS8 modular gateway supports Trap in SNMP. This

allows you to be notiﬁed immediately if the system is

experiencing any problems.

Global Features

Zed-3 sells and supports its products worldwide. The GS8

modular gateway supports telephony protocols for many

countries so it can connect directly to the local PSTN. Dif-

ferent modules are available for the GSM frequencies of

850 MHz and 1900 MHz (USA and most of the Americas)

or 900 MHz and 1800 MHz (most of the rest of the world).

The CDMA module operates at 800 MHz, serving most

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