Teldat Teldat-3Ge Bedienungsanleitung

Teldat-3Ge Quick Guide

Teldat-Dm 406-I

Teldat S.A. Manual

Teldat-3Ge Quick Guide 1

Legal Notice

Warranty

This publication is subject to change.

Teldat S.A. offers no warranty whatsoever for information contained in this manual.

Teldat S.A. is not liable for any direct, indirect, collateral, consequential or any other damage connected to the deliv-

ery, supply or use of this manual.

Manual Teldat S.A.

2Teldat-3Ge Quick Guide

Table of Contents

Chapter1 Introduction..................................... 1

1.1 Introduction...................................... 1

Chapter2 Configuration.................................... 3

2.1 Operatingdocumentation................................ 3

2.1.1 DataBackup...................................... 3

2.1.2 DHCP......................................... 4

2.1.3 VoiceBackup ..................................... 4

2.2 Teldat Router: Commands Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3 Creating 3G Virtual Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 3GAccessParameters................................. 6

2.5 IPConfiguration.................................... 7

2.6 L2TPTunnel...................................... 7

2.7 DHCPServer ..................................... 8

2.8 ConfiguringVoiceBackup................................ 9

2.8.1 Backup with analog telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.2 Backup with SIP-IP telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9 WAN Reroute Backup Facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.10 UpdatingtheFirmware ................................ 13

2.10.1 Using the router as a TFTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.11 FinalResult..................................... 13

Chapter3 Monitoring..................................... 20

3.1 Monitoring Communications with the Teldat-3Ge device . . . . . . . . . . . . . . . . . . 20

3.2 WirelessWANService ................................ 21

Chapter4 Appendix..................................... 22

4.1 Several Teldat-3Ge in the same corporate LAN . . . . . . . . . . . . . . . . . . . . . . 22

4.1.1 Two Teldat-3Ge devices serving a router . . . . . . . . . . . . . . . . . . . . . . . . 22

4.1.2 Two routers, each with a Teldat-3Ge . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2 LEDs........................................ 28

Teldat S.A. Table of Contents

Teldat-3Ge Quick Guide i

Table of Contents Teldat S.A.

ii Teldat-3Ge Quick Guide

Chapter 1 Introduction

1.1 Introduction

The Teldat-3Ge is a backup device for 3G communication routers that face one of the following issues:

• Poor coverage at the router’s location.

• Inability to run 3G communications due to not having the necessary hardware module.

• In addition to data backup, the Teldat-3Ge is capable of acting as a SIP-gateway for one or various client tele-

phones. In cases where the telephone communications are interrupted, calls to the outside can be made from

these telephones. Similarly, external calls can be received on the same phones or on one single phone.

Fig. 1: Teldat-3Ge device.

The Teldat-3Ge device has two communication interfaces; one being a Wireless WAN interface and the other an

Ethernet interface (providing 3G communications to the office router).

Fig. 2: Teldat-3Ge : Application scenario.

Since it operates as an external 3G interface for the company's communications router, the management and opera-

Teldat S.A. 1 Introduction

Teldat-3Ge Quick Guide 1

tion of the Teldat-3Ge is fully carried out from said router. For it to work properly, you need to add the necessary

configuration.

In cases where a Teldat-3Ge is going to be used as a SIP-gateway, the telephones receiving telephonic backup can

be:

• Analog (Option 1). In this case, the corporate communications router must have a VoIP expansion module installed

and the telephones must be connected to an FXS input.

• SIP IP Telephone (Option 2). In this case, the corporate communications router acts as a SIP-proxy between the

IP telephones and the Teldat-3Ge .

This document describes the text commands that need to be added to the router's Command Line Interface (CLI) for

it to manage the Teldat-3Ge serving as backup. The following sections offer a brief description on the communica-

tion between the Teldat-3Ge and the router. They go on to describe how to access the commands console and add

the configuration and monitoring commands for the available radio link. Finally, the Appendix shows how to combine

several Teldat-3Ge devices in a single private network and gives a description of the Teldat-3Ge status LEDs.

The device uses High Speed Uplink Packet Access technology (HSUPA).

Voice backup functionality is available in devices that are equipped with the Sierra Wireless MC8775V, MC8790V.

MC8791V, MC8792V, MC8795V, Option GTM382, Qisda H20 or Qisda H20D modems. To be able to use it, the

voice backup feature must be enabled by means of a license.

The Teldat-3Ge works with two types of electric power supply:

• An external power source handed together with the device.

• Through POE (Power over Ethernet).

If both are available, the external power source option is preferred.

Note

Before reading this document, Teldat recommends that you read the Teldat-3Ge Installation manual

(Dm398-I)

1 Introduction Teldat S.A.

2Teldat-3Ge Quick Guide

Chapter 2 Configuration

2.1 Operating documentation

2.1.1 Data Backup

The Teldat router manages the Teldat-3Ge through three virtual rcellular interfaces. This approach lets the router

provide the same configuration and monitoring features for the Teldat-3Ge as those offered over physical 3G inter-

faces (internal interfaces). Each rcellular interface has a different operational task:

• The first virtual interface (recellular1) monitors the radio link

• The second one (recellular2) is responsible for transmitting traffic the Teldat router sends over the 3G link.

• The third (recellular3) updates the Teldat-3Ge image (firmware).

Communications between the router and the Teldat-3Ge are achieved through a pseudowire L2TP tunnel where

three independent L2TP sessions are established; one for each rcellular interface registered in the router. Con-

sequently, a monitoring session, a data session and a firmware updating session are transported through this L2TP

tunnel.

Fig. 3: L2TP tunnels between the corporate Router and the Teldat-3Ge .

RF monitoring consists of a series of parameters on the Teldat-3Ge RF connection level of quality with the GSM and

HSDPA/HSUPA network. This information enables you to appropriately select the location for the device. Monitoring

can be carried out in various ways:

(1) Through the rcellular1 interface sending an AT monitoring command (see manual Dm781-I Cellular Interface).

(2) Opening a Telnet session with the device and executing the monitoring line command.

(3) Accessing the device’s web page.

As already indicated, the backup traffic is sent through the rcellular2 interface L2TP tunnel. A PPP session between

the corporate router and the Teldat-3Ge is established over this tunnel with the aim of initiating the connection with

the HSDPA/HSUPA network (authentication and to obtain an IP address from the network).

Teldat S.A. 2 Configuration

Teldat-3Ge Quick Guide 3

2.1.2 DHCP

The Teldat-3Ge starts up without a configuration (as this is defined in the router). The Teldat-3Ge gets its configura-

tion through DHCP.

On startup, the Teldat-3Ge requests an IP address for its Ethernet interface through a DHCP_DISCOVER packet.

The device waits for a response from, among other DHCP servers, the TELDAT corporate router. For this to happen,

the router must have a DHCP server activated. Through the DHCP protocol options, both devices identify and the

Teldat-3Ge only accepts the IP address offered by the TELDAT corporate router. Once the IP address has been re-

ceived, the Teldat-3Ge obtains the necessary operating information via the DHCP options.

2.1.3 Voice Backup

Voice backup uses SIP for signaling and RTP/RTCP to send the voice samples. Through these standard protocols,

the Teldat-3Ge can operate with routers that are not TELDAT.

As already mentioned, the Teldat-3Ge is a SIP-gateway.

Calls generated by the corporate telephone or telephones that are meant to exit through the device SIP-gateway are

routed through the GSM network. The person receiving the call takes it as if it were a call from a mobile phone. In the

same way, external calls to the corporate network telephones have to be made to the telephone number correspond-

ing to the SIM card incorporated in the Teldat-3Ge . The device’s SIP-gateway routes the external GSM call to the

corporate router using SIP and RTP/RTCP. The latter transfers it to the telephone (or telephones) the router has con-

figured to receive calls that arrive through the Teldat-3Ge .

Both in the analog and in the SIP IP telephone options, the corporate router acts as the SIP-proxy. That is, SIP traffic

is always produced between the corporate router and the Teldat-3Ge .

Fig. 4: Voice backup scenarios.

2.2 Teldat Router: Commands Console

Teldat-3Ge management is fully carried out through the Teldat router commands console. The console can be ac-

cessed both locally (through the device's configuration interface) and remotely (through a telnet connection to the

device's access IP address).

2 Configuration Teldat S.A.

4Teldat-3Ge Quick Guide

Explanations on how to access and operate the commands console are given in chapter 1 of manual Dm704-I Con-

figuration and Monitoring. The Teldat console opening message looks like this:

User: Root

Password:****

Router model XXXXX CPU MPC860 S/N: YYYY/YYYYY

1 LAN, 2 WAN Line , 2 ISDN Line

CIT software version: ZZZZZ

The configuration commands shown in this chapter are executed in the commands console configuration process.

The user can access this by executing the config command, as shown below:

*config 4

User Configuration

Config>

2.3 Creating 3G Virtual Interfaces

First we add the virtual interfaces recellular1,recellular2 and rcellular3, running the following commands:

add device rcellular 1

add device rcellular 2

add device rcellular 3

Then we define the function of each interface and configure the startup parameters for the Teldat-3Ge 3G module in

the monitoring interface (rcellular1).

network rcellular1

; -- Interface AT. Configuration --

description ETH-ANT-MON

coverage-timer 15

pin plain 5710

monitor-ifc 1

network mode automatic

network domain cs+ps

exit

;network rcellular2

; -- Interface AT. Configuration --

description ETH-ANT-PPP

ppp-ifc 1

exit

;network rcellular3

; -- Interface AT. Configuration --

description ETH-ANT-UPG

upgrade-ifc 1

exit

The pin plain 5710 command sets the PIN for the SIM card inserted in the Teldat-3Ge to 5710. If you want to set a

different PIN code, simply edit it using this command.

The "cs+ps" command network domain configures the device so that it can access the GSM and the HSDPA/HSUPA

networks at the same time.

Note

If the Teldat-3Ge is equipped with a module that doesn’t support voice backup, you should only config-

ure the "ps" network domain.

On device startup, the sequence of events is as follows:

• The L2TP tunnels try and open on detecting the presence of an rcellular interface.

Teldat S.A. 2 Configuration

Teldat-3Ge Quick Guide 5

• Once the L2TP tunnel is open, the link layer is considered to be established in this interface.

• Subsequently, the connection is tried through AT commands for the rcellular1 interface.

• Lastly the PPP connection is established through the rcellular2 interface.

Note

Configuring an incorrect PIN in the Teldat-3Ge can block your SIM card.

2.4 3G Access Parameters

The Name of the Access Point to the 3G network (APN) is configured as a call profile. Below, you can see an ex-

ample showing how to access a fictitious carrier APN:

global-profiles dial

; -- Dial Profiles Configuration --

profile WWAN default

profile WWAN dialout

profile WWAN 3gpp-accessibility-control traffic 20 all

profile WWAN 3gpp-apn internet.es

profile WWAN idle-time 300

;exit

If you want to access a different APN, the user must substitute internet.es in the profile WWAN 3gpp-apn inter-

net.es command for the APN given by the cellular provider.

For further information on call profiles, please see manual Dm732-I Call Profiles.

Next, we define and configure a PPP interface. This is responsible for providing registration information to the 3G

network. The PPP interface must be mounted over the rcellular2 interface. The commands for accessing the 3G ser-

vice are:

add device ppp 1

;network ppp1

; -- Generic PPP User Configuration --

ip address unnumbered

;ppp

; -- PPP Configuration --

authentication sent-user internet password internet

ipcp local address assigned

no ipcp peer-route

lcp echo-req off

exit

;network rcellular2

; -- Interface AT. Configuration --

lcp-options acfc

lcp-options pfc

lcp-options accm 0

exit

;

base-interface

; -- Base Interface Configuration --

base-interface rcellular2 link

base-interface rcellular2 profile WWAN

;exit

;

2 Configuration Teldat S.A.

6Teldat-3Ge Quick Guide

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