Lancom 1723 VOIP User manual

110827/0810
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Würselen
Germany
E-Mail: [email protected]
Internet www.lancom.eu
LANCOM 1722 VoIP
LANCOM 1723 VoIP
LANCOM 1724 VoIP
LANCOM 1823 VoIP
LANCOM 1722 VoIP – LANCOM 1723 VoIP LANCOM 1724 VoIP – LANCOM 1823 VoIP
쮿Handbuch
쮿Manual
...connecting your business
110827_HB-LC_1722-1723-1823-17241 1110827_HB-LC_1722-1723-1823-17241 1 11.08.2010 09:09:4311.08.2010 09:09:43

LANCOM 1722 VoIP
LANCOM 1723 VoIP
LANCOM 1724 VoIP
LANCOM 1823 VoIP

© 2010 LANCOM Systems GmbH, Wuerselen (Germany). All rights reserved.
While the information in this manual has been compiled with great care, it may not be deemed an assurance of product
characteristics. LANCOM Systems shall be liable only to the degree specified in the terms of sale and delivery.
The reproduction and distribution of the documentation and software supplied with this product and the use of its contents
is subject to written authorization from LANCOM Systems. We reserve the right to make any alterations that arise as the
result of technical development.
Windows®, Windows 7, Windows Vista™, Windows NT® and Microsoft® are registered trademarks of Microsoft, Corp
Apple, Apple logo, Macintosh, PowerMac, iMac, MacBook, iPhone, Mac OS, Leopard, Snow Leopard, Mac and the Mac
logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
The LANCOM Systems logo, LCOS and the name LANCOM are registered trademarks of LANCOM Systems GmbH. All other
names or descriptions used may be trademarks or registered trademarks of their owners.
Subject to change without notice. No liability for technical errors or omissions.
Products from LANCOM Systems include software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http:/
/www.openssl.org/).
Products from LANCOM Systems include cryptographic software written by Eric Young ([e-mail]).
Products from LANCOM Systems include software developed by the NetBSD Foundation, Inc. and its contributors.
Products from LANCOM Systems contain the LZMA SDK developed by Igor Pavlov.
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Wuerselen
Germany
www.lancom.eu
Wuerselen, August 2010
11
082
7/
08
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LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Preface
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Preface
Thank you for your confidence in us!
LANCOM VoIP Routers provide the comprehensive functions of an access
router, professional firewall and high-quality VPN gateway and WLAN access
point in a single, compact device. They thus combine investment protection
and cost savings as a reliable voice over IP solution for small and mid-sized
enterprises, home and branch offices.
LANCOM 1823
VoIP only LANCOM Wireless Routers and LANCOM Access Points can be oper-
ated either as self-sufficient Access Points with their own configura-
tion (WLAN modules in "Access Point mode“) or as components in a
WLAN infrastructure, which is controlled from a central
WLAN-Controller ("managed mode"). Please observe the correspond-
ing notices to this in this documentation.
Standard features of the different models are integrated interfaces for ADSL
and ISDN, and a LAN switch. LANCOM 1723 VoIP additionally provides inter-
faces for analog telephone systems. Along with the analog interfaces,
LANCOM 1823 VoIP also provides professional WLAN technology.
In addition to data communications functions, VoIP support transforms
LANCOM Routers into fully fledged, integrated VoIP communications solu-
tions. Along with Quality of Service functions which are optimized for VoIP, the
LANCOM VoIP Routers offer the full range of options required for voice com-
munications over data networks and the step-by-step, cost-effective and sim-
ple migration from existing telecommunications systems to corporate Voice
over IP. The particular characteristics of LANCOM VoIP Routers include, among
others:
PBX functions for analog, ISDN and SIP subscribers
Site connectivity of data and voice via VPN
SIP proxy and registrar for registration with providers and upstream VoIP
PBXs
SIP trunking for multiple parallel lines with extension numbers over a sin-
gle account with a switchboard number.
SIP gateway with transparent transition between SIP and ISDN/analog
telephony
SIP remote gateway provides local SIP, ISDN or analog lines to remote
IP-PBXs.

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Preface
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Intelligent call routing and number translation
Support of point-to-point and point-to-multipoint connections to the
ISDN network
Multiple configurable ISDN interfaces (NT/TE), some with life-line support
and power relay to the internal ISDN bus
WLAN compliant to the standards IEEE 802.11a/h or IEEE 802.11b/g
Information about your model's functionality in detail is available from the
table 'Just what can your LANCOM VoIP Router do?'.
LANCOM products undergo continuous development. For precise
information about their features and for the latest version of the LCOS
operating system, please visit the LANCOM website.
Model variants
This documentation is to be used for different models:
LANCOM 1722 VoIP
LANCOM 1723 VoIP
LANCOM 1724 VoIP
LANCOM 1823 VoIP
Model restriction The sections of the documentation that refer only to a range of models are
marked either in the corresponding text itself or with appropriate comments
placed beside the text.
In the other parts of the documentation, all described models have been clas-
sified under the general term LANCOM VoIP Router.
Security settings
To maximize the security available from your product, we recommend that you
undertake all of the security settings (e.g. firewall, encryption, access protec-
tion) that were not already activated when you purchased the product. The
LANconfig Wizard 'Security Settings' will help you with this task. Further infor-
mation is also available in the chapter 'Security settings'.
We would additionally like to ask you to refer to our Internet site
www.lancom.eu for the latest information about your product and technical
developments, and also to download our latest software versions.
Components of the documentation
The documentation of your device consists of the following parts:

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Preface
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Installation Guide
User manual
PBX Functions manual
Menu Reference Guide
You are now reading the user manual. It contains all information you need to
put your device into operation. It also contains all of the important technical
specifications.
The PBX Functions manual gives you detailed step-by-step instructions on
commissioning a LANCOM VoIP Router as a PBX (private branch exchange) for
a single location. Also described are the main operating instructions for users,
and how to connect terminal equipment.
The Reference Manual is to be found as an Acrobat document (PDF file) at
www.lancom.eu/download or on the data medium (CD/DVD) supplied. It is
designed as a supplement to the user manual and goes into detail on topics
that apply to a variety of models. These include, for example:
The system design of the operating system LCOS
Configuration
Management
Diagnosis
Security
Routing and WAN functions
Firewall
Quality of Service (QoS)
Virtual Private Networks (VPN)
Virtual Local Networks (VLAN)
Wireless networks (WLAN)
Voice communication in computer networks with Voice over IP (VoIP)
Backup solutions
LANCAPI
Further server services (DHCP, DNS, charge management)
The Menu Reference Guide (also available at www.lancom.eu/download or on
the data medium (CD/DVD) supplied) describes all of the parameters in LCOS,
the operating system used by LANCOM products. This guide is an aid to users
during the configuration of devices by means of WEBconfig or the telnet con-
sole.

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Chapter :
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EN
This documentation was created by …
... several members of our staff from a variety of departments in order to
ensure you the best possible support when using your LANCOM product.
Should you find any errors, or if you would like to suggest improvements,
please do not hesitate to send an e-mail directly to:
[email protected]
Our online services www.lancom.eu are available to you around the
clock if you have any questions on the content in this manual, or if you
require any further support. The area 'Support' will help you with
many answers to frequently asked questions (FAQs). Furthermore, the
knowledgebase offers you a large reserve of information. The latest
drivers, firmware, utilities and documentation are constantly available
for download.
In addition, LANCOM Support is available. For telephone numbers
and contact addresses for LANCOM Support, please refer to the
enclosed leaflet or the LANCOM Systems Web site.
Information symbols
Very important instructions. Failure to observe these may result in damage.
Important instruction that should be observed.
Additional information that may be helpful but is not essential.

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Contents
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Contents
1 Introduction 11
1.1 How do ADSL and ADSL 2+ work? 11
1.2 What does VPN offer? 13
1.3 Firewall 14
1.4 Voice over IP 15
1.4.1 Example Applications 15
1.4.2 The central position of the LANCOM VoIP Router 21
1.4.3 VoIP characteristics of the LANCOM VoIP Routers 24
1.5 Just what can your LANCOM do? 25
2 Installation 33
2.1 Package content 33
2.2 System requirements 34
2.2.1 Configuring the LANCOM devices 34
2.2.2 Operating access points in managed mode 34
2.3 Introducing the LANCOM Router 34
2.3.1 Status displays 34
2.3.2 Device connectors 41
2.4 Hardware installation 44
2.5 Configuring the ISDN and analog interfaces 47
2.6 Software installation 47
2.6.1 Starting Software Setup 47
2.6.2 Which software should I install? 49
3 Basic configuration 50
3.1 Details you will need 50
3.1.1 TCP/IP settings 50
3.1.2 Configuration protection 52
3.1.3 Settings for the wireless LAN 52
3.1.4 Charge protection 53
3.2 Instructions for LANconfig 54
3.3 Instructions for WEBconfig 55
3.4 TCP/IP settings for PC workstations 59

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Contents
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4 Setting up Internet access 61
4.1 The Internet Connection Wizard 63
4.1.1 Instructions for LANconfig 63
4.1.2 Instructions for WEBconfig 64
5 Configuring the VoIP functions 65
6 Connecting two networks 66
6.1 Which details are necessary? 67
6.1.1 General information 67
6.1.2 Settings for the TCP/IP router 69
6.1.3 Settings for NetBIOS routing 70
6.2 Instructions for LANconfig 71
6.3 1-Click-VPN for networks (site-to-site) 72
6.4 Instructions for WEBconfig 73
7 Providing dial-in access 74
7.1 Which details are necessary? 74
7.1.1 General information 75
7.1.2 Settings for TCP/IP 76
7.1.3 Settings for NetBIOS routing 77
7.2 Settings on the dial-in computer 77
7.2.1 Dialing-in via VPN 77
7.2.2 Dialing-in via ISDN 77
7.3 Instructions for LANconfig 78
7.4 1-Click-VPN for LANCOM Advanced VPN Client 78
7.5 Instructions for WEBconfig 80

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Contents
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8 Advanced wireless LAN configuration 81
8.1 WLAN configuration with the wizards in LANconfig 81
8.2 Point-to-point connections 83
8.2.1 Geometric dimensioning of outdoor wireless network
links 83
8.2.2 Antenna alignment for P2P operations 88
8.2.3 Measuring wireless bridges 90
8.2.4 Activating the point-to-point operation mode 90
8.2.5 Configuration of P2P connections 91
8.2.6 Security for point-to-point connections 94
8.3 Client mode 96
8.3.1 Client settings 96
8.3.2 Set the SSID of the available networks 97
8.3.3 Encryption settings 97
8.3.4 Roaming 98
9 Sending faxes with LANCAPI 101
9.1 Installation of the LANCOM CAPI Faxmodem 102
9.2 Installation of the MS Windows fax service 103
9.3 Sending a fax 104
9.3.1 Send a fax with any given office application 104
9.3.2 Send a fax with the MS Windows fax service 105
10 Options and accessories 106
10.1 Optional AirLancer Extender antennas 106
10.1.1 Antenna diversity 107
10.1.2 Polarization diversity 107
10.1.3 Installing the AirLancer Extender antennas 107
10.2 LANCOM Public Spot Option 108