DBL Technology RoIP-302 Series User Manual

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DBL Technology Limited RoIP-302 User Manual

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Cross-Network Gateway

(Radio,VoIP,GSM,Public Announce)

User Manual

- RoIP-302 -

ROIP302 Series

Version：1.0

2010-7-13

For environmental protection, please view this manual
electronically and only print the pages you need.

得伯乐科技有限公司

DBL Technology Limited RoIP-302 User Manual

Web: www.dbltek.com

Tel: [phone]

Content

I. Important Notices .............................................................................................. 3

II. Gift Box Check List ......................................................................................... 4

III. Overview ........................................................................................................ 5

IV. Installation .................................................................................................... 10

V. Default Factory Settings ................................................................................ 13

VI. Device Configuration Via Built-in Web Server ........................................... 14

VII. Call settings ................................................................................................. 19

VIII. Initiating a Cellular Call ............................................................................ 24

IX. Application Examples .................................................................................. 25

X. Hardware Specifications ................................................................................ 31

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DBL Technology Limited RoIP-302 User Manual

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I. Important Notices

i. This product is used to link up the civilian radio network, internet, and cellular phone

network. Its operation and performance rely on the broadband network connections via private

and/or public networks and the cellular phone networks. Due to the stability and reliability of these

networks, this product may not be able to link up all the networks connected without any

interruptions. Therefore, it is not recommended to use this product in an emergency system or a

communication system with zero-failure.

ii. This product can bridge and extend radio networks all over the world. Please consult your

local regulations in order to use this product legally.

iii. This product requires the use of dynamic DNS (DDNS) service. For testing purpose, this

DDNS service is temporary provided for free by DBL Technology (Hong Kong). However, this

service is not guaranteed without any interruptions. Customers are urged to build their own DDNS

server or obtain this service from a DDNS provider. Free DDNS server software may be obtained

freely from your local network service provider.

iv. Customers and/or users are taking full responsibilities and all risks in using this product. We

are not responsible for any direct or indirect losses caused by, but not limited to,communication

failures as a result of product failure or network problems.

CUSTOMERS ARE ASSUMED TO HAVE READ AND ACCEPTED WITH FULL

UNDERSTANDINGS OF THE IMPORTANT NOTICES STATED ABOVE.

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DBL Technology Limited RoIP-302 User Manual

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II. Gift Box Check List

i. Upon unpacking the gift box,please check carefully that all items listed below are

included.Please report to your supplier for any missing items immediately.

3×PPT Adapter Cables

1×AC/DC Adapter

Input:110/220 VAC

Output:12VDC,2A

1×Main Unit

1×Ethernet Cable

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DBL Technology Limited RoIP-302 User Manual

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III. Overview

The fundamental of RoIP（Radio over IP）technology is to convert the audio and PTT signals in

a radio terminal into IP packets and then transmit the data via the IP networks. The challenge in this

technology is to insure that the audio is transmitted in real time and the PPT control signal is transmitted

immediately and reliably. The radio range is general limited by the restricted transmitting power,

the antenna sensitivity, and other environmental factors. The success deployment of this technology

extends the coverage of a radio network without using expensive repeaters or links up multiple

radio networks in the world. In addition, this technology can also link up the radio world to the

VoIP world and the cellular world easily. It truly makes voice communications across multiple

networks possible.

RoIP302 series is developed based on VoIP technology to realize RoIP functions in order to

create a new type of gateway to bridge voice communications across multiple networks (Radio,

Cellular, VoIP). Its main advantages are low bandwidth usage, high fault tolerant, low loss in voice

quality, fast response, easy installation and configuration. It is ideal for setting up a private network

with multiple voice communication platforms, a distributed network for remote management, a

network with extended coverage, and an integrated network of multiple amateur radio networks.

RoIP302 Series Cross-Network Gateway has 3 PTT interfaces. Up to 3 audio channels from

radio networks can be connected to the RoIP302 simultaneously. All 3 channels can be

programmed into the same or different groups in order to bridge real time voice communications to

various network interfaces.

RoIP302 Series has a built-in GSM / CDMA cellular phone module, user can access the radio

networks connected via the cellular network installed. A radio terminal equipped with DTMF

generation capability can make an outgoing call via the cellular network as well. This links up the

two networks which cannot be linked up via any traditional means.

RoIP302 Series gateway can also be a remote ON/OFF Switch. User can control the built-in

relay to switch on or off the devices that are under control. These devices could be an alarm signal,a

light, a public announce system, an electronic lock, etc.

RoIP302 Series gateway supports routing of IP voice stream to via a recording server. Voice

records can then be saved to a hard disk and can be retrieved at any time for examinations.

RoIP302 Series gateway can be installed in IP networks with intranet or internet connections

via ADSL modem, Cable modem, or Local Area Network (LAN). The unique built-in DDNS client

can help to simplify the installation and configuration without relying on a voice relay server in

order to achieve interconnections among RoIP302 Series gateways.

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DBL Technology Limited RoIP-302 User Manual

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i. Theory of Operation

The diagram below shows the concept of how RoIP bridge the voice communication two radio

terminals at two different locations. The PTT Interface Cable provided is used to connect between

the RoIP and the radio terminal. Please note how the signals are passing between these two devices.

The connection between the two RoIP302s is through internet or intranet. The green lines actually

show how the audio and the PTT control signals are transmitted between the two radio terminals.

The two RoIPs have created a virtual connection between the two radio terminals.

ii. Modes of Operation

With different options, RoIPs support both Point-to-Point Mode and Group Transmit Mode

operations. Please refer to Section 3.4 for more RoIP versions available.

There are two types of RoIPs: RoIP302 and RoIP302M. RoIP302s cannot only support

Point-to-Point operation. RoIP302M has a built-in SIP server for 12 clients (RoIP302 can only

support one client) and group transmit capability. The additional feature in RoIP302M is the

built-in SIP server and the ability to transmit voice signal a maximum of 12 SIP Clients

simultaneously.

a. Point-to-Point Mode

In this mode, one RoIP302 is using public IP and the others could use public IPs of private IPs

with DDNS enabled. If the built-in SIP server is used, either one of the RoIPs can be a master and

the other will register to the master. Please make sure that both RoIP302s do not have the same

Group SIP Number.

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DBL Technology Limited RoIP-302 User Manual

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The diagram below demonstrates each RoIP302 are connected to 3 Radio Terminals. Each

terminal is assigned to a different group. The two RoIP are connected via a IP connection as shown

by the blue line. The PTT control signal is represented by the single purple lines and the voice

signals are represented by the double purple lines. When a voice transmission is initiated from a

channel, the RoIP302 will connect to the other RoIP302 in order to establish a link with the

corresponding channel automatically.

b. Group Transmit Mode

At least one RoIP302M is required to support the Group Transmit mode. This RoIP302M is the

master with its own unique Group SIP Number and offers its built-in SIP server for up to 12

RoIP302s (RoIP302M can also register as well for expansion) to register. The diagram below shows

only RoIP302s are used to register to the RoIP302M. Each RoIP302s must have its unique Group

SIP Number. A maximum of 12 RoIP302s can be deployed in this example. Please note that only

one one-way voice transmission is allowed at all time.

When a voice signal is transmitted from a RoIP302, RoIP302M will re-transmit the signal to all

other clients in the same group. If the voice signal is coming from a PTT port (radio terminal) of the

RoIP302M, the RoIP302M will re-transmit the voice signal to all other PTT ports and SIP clients

that are in the same group. For example, if Channel 802 talks, Channel 701, 803 and 804 can hear.

If Channel 701 talks, Channel 802, 803, and 804 can hear.

Please note that when more channels are used, the higher bandwidth is required and the poor

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DBL Technology Limited RoIP-302 User Manual

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the performance of the system is. It is recommended that the user needs to insure sufficient

bandwidth is available and the network connection is stable before implementing a large network.

In general, intranet network is preferred in this case.

iii. Application Examples

Application example 1: Link up radio network between two locations

-Using two RoIP302Gs to link up three radio channels in two different locations.

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Application example 2: Link up radio network at multiple locations

-As shown in the application diagram above, four locations can be linked up via one

RoIP302GM and three RoIP302G. The RoIP302GM has a built-in SIP server and the group transmit

capability to up to 12 SIP clients. By replacing one RoIP302G with RoIP302GM, the system is now in

Group Transmit Mode and up to 11 more RoIP302Gs can be added to the system. Each RoIP302G now

registers to the RoIP302M. This mechanism allows the system to expand rapidly.

iv. Model Nomenclature

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DBL Technology Limited RoIP-302 User Manual

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IV. Installation

i. Back Panel

Label

Name

Description

1

Switch

Remote control: Relay switch with 220VAC input
and 500 mA load current.

2

Channel 3

6-pin RJ11port for PTT Adapter Cable

3

Channel 2

6-pin RJ11port for PTT Adapter Cable

3

Channel 1

6-pin RJ11port for PTT Adapter Cable

5

Reset

Press 10 seconds to reset the device to factory
defaults.

6

WAN

10/100Base-T WAN connection for external

access

7

LAN

10/100Base-T LAN connection

8

Power

12V 1A

ii. LED Indicators

LED

Function

Description

Power

Pwoer

Lights up when the power is connected

RUN

RoIP Status

Flashes every 250ms indicates the device is not

ready.

Flashes every 500ms indicates the device is ready.

LAN

LAN port status

Lights up when the LAN port is connected.

Blinks when there are data transmissions.