Swyx SwyxConnect 1722, SwyxConnect 1723, SwyxConnect 1724 User Manual
SwyxConnect 1722
SwyxConnect 1723
SwyxConnect 1724
Documentation
SwyxWare Branch Office Solution
As of: September 2006
© 2000-2006 Swyx. All rights reserved.
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Preface
Thank you for your confidence in us!
Swyx 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.
Standard features of the different models are integrated interfaces for
ADSL and ISDN, and a LAN switch. SwyxConnect 1723
additionally provides interfaces for analog telephone systems.
In addition to data communications functions, VoIP support
transforms SwyxConnects into fully fledged, integrated VoIP
communications solutions. Along with Quality of Service functions
which are optimized for VoIP, the Swyx VoIP Routers offer the full
range of options required for voice communications over data
networks and the step-by-step, cost-effective and simple migration
from existing telecommunications systems to corporate Voice over IP.
The particular characteristics of Swyx VoIP Routers include, among
others:
• SIP proxy for registration with providers and upstream VoIP
PBXs
• SIP trunking for multiple parallel lines with extension numbers
over a single 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.
• Intelligent call routing and number translation
• Support of point-to-point and point-to-multipoint connections
• Multiple configurable ISDN interfaces (NT/TE), some with lifeline support and power relay to the internal ISDN bus
Information about your model's functionality in detail is available
from the table 'Just what can your Swyx VoIP Router do?'.
SwyxConnect products undergo continuous development. For precise
information about their features and for the latest version of the
LCOS operating system, please visit the SwyxConnect website.
III
Model restriction
Model variants
This documentation is to be used for different models:
• SwyxConnect 1722
• SwyxConnect 1723
• SwyxConnect 1724
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 classified under the general term Swyx 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 protection, charge limits) that were not
already activated when you purchased the product. The LANconfig
Wizard 'Security Settings' will help you with this task. Further
information is also available in the chapter 'Security settings'.
We would additionally like to ask you to refer to our Internet site
www.swyx.com for the latest information about your product and
technical developments, and also to download our latest software
versions.
IV
User manual and reference manual
The documentation of your device consists of three parts: The
installation guide, the user manual and the reference manual.
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 reference manual can be found on the LANCOM product CD as
an Acrobat (PDF) document. 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)
• Voice communication in computer networks with Voice over IP
(VoIP)
• Backup solutions
• Further server services (DHCP, DNS, charge management)
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
SwyxConnect
In case you encounter any errors, or just want to issue critics
enhancements, please do not hesitate to send an email directly to:
info@swyx.de
Our online services www.swyx.com are available to you around the
clock should you have any queries regarding the topics discussed in
this manual or 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, SwyxConnect support is available. For telephone
numbers and contact addresses of SwyxConnect support, please see
the enclosed leaflet or the Swyx website.
product.
Information symbols
Very important instructions. Failure to observe this
may result in damage.
Additional information that may be helpful but
which is not required.
V
Contents
Introduction 1-1
How do ADSL and ADSL 2+ work? ........................... 1-1
What does VPN offer? ............................................... 1-3
Firewall....................................................................... 1-4
Voice over IP.............................................................. 1-5
Example Applications ..........................................................1-5
The central position of the Swyx VoIP Router ................... 1-10
VoIP characteristics of the Swyx VoIP Routers................. 1-13
Just what can your Swyx VoIP Router do? .............. 1-15
Installation 2-1
Package content ........................................................ 2-1
System requirements ................................................. 2-2
Introducing the SwyxConnect .................................... 2-2
Status displays .................................................................... 2-2
Device connectors ............................................................... 2-7
Hardware installation.................................................. 2-9
Configuring the ISDN and analog interfaces............ 2-11
ISDN interface in NT or TE mode...................................... 2-11
Bus termination, life-line support and power supply .......... 2-12
Protocol setting.................................................................. 2-14
ISDN connection timing ..................................................... 2-15
Software installation ................................................. 2-16
Starting Software Setup..................................................... 2-17
Which software should I install? ........................................2-17
VI
Configuring the VoIP functions 3-1
LANconfig Wizards..................................................... 3-1
Configuration examples ............................................. 3-2
Using VoIP telephony as an extension to an analog PBX... 3-2
Using VoIP telephony to complement the ISDN PBX.......... 3-8
VoIP telephony with extension numbers (SIP trunking) .... 3-14
Configuring the VoIP terminal equipment ................ 3-19
Setting up the VoIP client to register itself with the
Swyx VoIP Router................................................. 3-19
Setting up the VoIP client to register at a PBX .................. 3-20
Setting up the VoIP telephone to register itself with the
Swyx VoIP Router................................................. 3-22
Basic configuration 4-1
Which information is necessary? ............................... 4-1
TCP/IP settings ................................................................... 4-1
Configuration protection ...................................................... 4-3
Settings for the DSL connection.......................................... 4-3
Connect charge protection .................................................. 4-3
Instructions for LANconfig .......................................... 4-4
Instructions for WEBconfig......................................... 4-5
TCP/IP settings to workstation PCs ........................... 4-9
Setting up Internet access 5-1
Instructions for LANconfig .......................................... 5-2
Instructions for WEBconfig......................................... 5-2
Linking two networks 6-1
What information is necessary? ................................. 6-2
General information............................................................. 6-2
Settings for the TCP/IP router ............................................. 6-4
Settings for the IPX router................................................... 6-6
Settings for NetBIOS routing............................................... 6-7
Instructions for LANconfig .......................................... 6-7
Instructions for WEBconfig......................................... 6-8
Providing dial-in access 7-1
Which information is required? .................................. 7-1
General information............................................................. 7-2
Settings for TCP/IP ............................................................. 7-3
Settings for IPX ................................................................... 7-4
Settings for NetBIOS routing............................................... 7-4
Settings for the dial-in computer ................................ 7-5
Dial-up via VPN................................................................... 7-5
Dial-up via ISDN.................................................................. 7-5
Instructions for LANconfig .......................................... 7-5
Instructions for WEBconfig......................................... 7-6
Security settings 8-1
The security settings wizard....................................... 8-1
Wizard for LANconfig .......................................................... 8-1
Wizard for WEBconfig ......................................................... 8-2
VII
The firewall wizard .....................................................8-2
Wizard for LANconfig........................................................... 8-3
Configuration under WEBconfig .......................................... 8-3
The security checklist.................................................8-3
Troubleshooting 9-1
No DSL connection is established ............................. 9-1
DSL data transfer is slow ........................................... 9-1
Unwanted connections under Windows XP ............... 9-2
Appendix 10-1
Performance data and specifications ............... 10-1
Contact assignment ................................................. 10-2
ADSL interface .................................................................. 10-2
ISDN interface ⌧ .............................................................. 10-3
ISDN interface .............................................................. 10-3
ISDN/Analog interface ⌧ .................................................. 10-3
Analog interface ............................................................ 10-4
Ethernet interface 10/100Base-TX .................................... 10-4
Configuration interface (Outband) .....................................10-5
Declaration of conformity ......................................... 10-5
VIII
1 Introduction
Swyx VoIP Routers are fully functional routers with an integrated
firewall to provide local networks with secure access to the Internet.
With the VPN option included, these devices work as powerful
Dynamic VPN gateways for external locations or mobile users.
Along with the ADSL connection, these devices also feature ISDN
connections, and some feature analog telephone connections. An
ISDN line can be used to backup the WAN connection, for remote
management of the router, as a basis for office communications via
LANCAPI, and for establishing Dynamic VPN connections to
external locations that use dynamic IP addresses.
By using the Voice over IP function, these devices can transfer voice
data over broadband Internet as well as over ISDN and analog
telephone connections.
1.1 How do ADSL and ADSL 2+ work?
ADSL (Asymmetric Digital Subscriber Line) is currently the most
common technology for broadband Internet connections. Standard
and almost ubiquitous telephone lines (analog or DSL) are the basis
for DSL data transfer to the nearest telephone exchange. From here,
the data is passed directly on to the Internet over high-speed
connections.
The asymmetric DSL variant ADSL was developed for applications
where users receive large amounts of data but transmit only small
amounts, such as when surfing in the WWW. ADSL subscribers can
receive data at up to 8 Mbps ("downstream") and transmit at up to
800 kbps ("upstream"). ADSL providers are able to reduce these
maximum rates as they please.
To satisfy the strongly increasing demand for higher bandwidths, the
standards ADSL
for applications such as video streaming or high-definition TV
(HDTV) over the Internet. Depending on the Internet provider,
ADSL
2 devices support downstream data rates of up to 12 Mbps,
and ADSL
during connection establishment ensure that the standards ADSL,
ADSL
2 and ADSL 2+ are intercompatible.
Parallel to data transfer, ADSL also provides full and unlimited
support for the classic applications in telephony (telephone, fax,
2 and ADSL 2+ provider higher data rates as a basis
2+ devices support up to 24 Mbps. Handshake routines
Introduction 1-1
answering machine, PBX). This is facilitated by splitters which
separate the voice frequencies from the data frequencies.
The Swyx VoIP Router features an integrated modem for
ADSL/ADSL
2+. It can be directly connected to the splitter with the
supplied cable.
Internet
PSTN
Switching
nodes
DSLAM
ADSL prover
Splitter
Router with integrated
Splitter
ADSL modem
Telephone
Subscribers
ADSL can operate over both ISDN- and analog telephone lines
(POTS – Plain Old Telephone Service). Devices with an integrated
modem are supplied in two versions. Information about the supported
telephone system is to be found on the type designation on the
underside of the device. The device name is marked on the label
along with a suffix which indicates the supported telephone system:
Suffix
Supported telephone system
'Annex A' ADSL-over-POTS
'Annex A' ADSL-over-ISDN
Annex A-type devices are exclusively to be operated at ADSL-overPOTS connections. Annex B-type devices are exclusively to be
operated at ADSL-over-ISDN connections. Your network operator
will be able to inform you of the version you need. These devices
cannot be altered or upgraded to a system other than that for which it
is equipped.
There are even ADSL-over-ISDN connections which are not
combined with an ISDN connection, but with a standard analog
telephone connection instead. In Germany, for instance, all T-DSL
connections from Deutsche Telekom AG are implemented as ADSLover-ISDN connections.
1-2 How do ADSL and ADSL 2+ work?
1.2 What does VPN offer?
A VPN (Virtual Private Network) can be used to set up secure data
communications over the Internet.
The following structure results when using the Internet instead of
direct connections:
Headquar-
LAN
LAN
Branch office
Internet
Computers using remote access
All participants have fixed or dial-up connections to the Internet.
Expensive dedicated lines are no longer needed.
1. All that is required is the Internet connection of the LAN in the
headquarters. Special switching devices or routers for dedicated
lines to individual participants are superfluous.
2. The subsidiary also has its own connection to the Internet.
3. The RAS PCs connect to the headquarters LAN via the Internet.
The Internet is available virtually everywhere and typically has low
access costs. Significant savings can thus be achieved in relation to
switched or dedicated connections, especially over long distances.
The physical connection no longer exists directly between two
participants; instead, the participants rely on their connection to the
Internet. The access technology used is not relevant in this case:
Broadband technology such as DSL (Digital Subscriber Line) is
ideal. A conventional ISDN line can be used, too.
The technologies of the individual participants do not have to be
compatible to one another, as would be the case for conventional
What does VPN offer? 1-3
direct connections. A single Internet access can be used to establish
multiple simultaneous logical connections to a variety of remote
stations.
The resulting savings and high flexibility makes the Internet (or any
other IP network) an outstanding backbone for a corporate network.
1.3 Firewall
The integrated stateful-inspection firewall is an effective barrier to
unwanted data traffic as it only permits the entry of data as a response
to outgoing data traffic. The IP masquerading function in the router
conceals LAN workstations accessing the Internet behind a single
public IP address. The true identities (IP addresses) of the individual
workstations remain masked. Router firewall filters allow the
blocking of individual IP addresses, protocols and ports. MAC
address filters also offer effective control over the access of LAN
workstations to the IP routing functions in the device.
LAN
Internet
1-4 Firewall
Firewall
SwyxConnect
Further important features in the firewall are:
• Intrusion detection
Attempts to break in to the local network or central firewall are
recognized, repelled and recorded by the Intrusion Detection
System (IDS) in the SwyxConnect. There is a choice of alarms
including in-device logging, e-mail messaging, SNMP traps or
SYSLOG alarms.
• Denial-of-Service protection
In addition to conventional break-ins, attacks from the Internet
may aim to block the availability of individual services. For this
reason, the SwyxConnect router is equipped with appropriate
security mechanisms to recognize popular hacker attacks and
guarantee router functionality.
• Quality of Service/traffic management
The term Quality of Service (QoS) embraces a range of functions in your SwyxConnect. QoS functions consider the powerful classification methods used by firewalls (e.g. restriction to
subnets, individual workstations or certain services). These
enable Quality of Service to be very precisely controlled.
By guaranteeing a minimum bandwidth, precedence can be assigned to enterprise-critical applications, VoIP telephony or certain user groups.
Details about the functions of the SwyxConnect stateful-inspection
firewall are available in the reference manual.
1.4 Voice over IP
The term Voice over IP (VoIP) refers to voice communications over
computer networks based on the Internet protocol (IP). The core idea
is to provide the functions of traditional telephony via cost-effective
and wide-spread networking structures such as the Internet. VoIP
itself is not a standard, rather it is a collective term for the various
technologies (equipment, protocols, voice encoding, etc.) which
make voice communications in IP networks possible.
1.4.1 Example Applications
Voice over IP solutions offers advantages across a broad spectrum of
applications, starting with small companies and extending to large
corporations with extensive networks of subsidiaries. In the following
section, we will demonstrate a number of examples.
Detailed information about configuration is available in the chapter
'Configuration of VoIP functions' or in the LCOS reference manual.
1.4.1.1 Supplementing existing PBXs
VoIP functions can be conveniently added in to existing telephone
structures by using a Swyx VoIP Router. The Swyx VoIP Router is
simply connected between the public exchange line (e.g. ISDN
NTBA or analog telephone line) and the PBX.
Voice over IP 1-5
Example: ISDN PBX
VoIP telephoneVoIP softphone
Public SIP provider
Internet
Analog fax
machines and
telephones
ISDN PBX
ISDN telephones
Swyx VoIP Router between NTBA and PBX
ISDN NTBA
PSTN
ISDN network subscribers
Telephone calls over the PBX and the telephones connected to it
remain possible just as before; the telephones remain available under
the familiar telephone numbers. This application additionally offers
the following options:
• In addition to the ISDN and analog telephones, VoIP telephones
or VoIP softphones can be included in the telephone
infrastructure.
• VoIP subscribers in the internal LAN are also able to call
external PSTN subscribers.
• The ISDN and analog telephones continue to function, and
additionally they can call all of the internal VoIP telephones
and softphones in the LAN.
• Calls to external SIP subscribers who use the same Internet
provider are often available at no cost.
• With the appropriate connection to a public SIP provider, any
other SIP subscriber worldwide can be called, irrespective of the
provider network. As an alternative to a direct telephone
connection, public telephone network subscribers can also be
reached over a diversion via the SIP provider. The costs depend
on the provider's particular tariff models. Frequently, longdistance and overseas calls via an SIP provider are significantly
cheaper than the traditional telephone connection.
In this constellation, the Swyx VoIP Router takes over the switching
of the calls. The device can be individually configured, for example,
1-6 Voice over IP
to use the access codes to decide upon the switching of a call either
via the ISDN interface, or via the Internet as a VoIP call.
1.4.1.2 Connecting subsidiaries or home offices to the headquarters
Many subsidiaries or home offices already have a connection to the
network at headquarters over VPN. These connections are normally
limited to conventional data transmission. By using VoIP, internal
company calls can be made for free over the existing VPN connection
and—
thanks to the VPN encryption —these calls are secured against
eavesdropping.
With a Swyx VoIP Router located in the branch or home office, the
two worlds of traditional (ISDN and analog) and VoIP telephony can
be united in a single telephone: A VoIP telephone or an existing
analog or ISDN telephone can be used for free telephone calls via
VPN to the headquarters, or to make standard calls via the
conventional telephone network.
Example: Branch office with analog telephone connection, headquarters with VoIP-capable PBX
VoIP telephone
VoIP telephones
Swyx VoIP Router
Analog tele-
Branch office Headquarters
Internet
VPN tunnel
SwyxConnect
PSTN
The advantages of a telephone connection to headquarters:
• The configuration of telephone functions can be carried out
centrally in the VoIP PBX at headquarters.
• Subscribers at their branch or home offices connect with the
central PBX.
• Calls within the company network are free.
• Outgoing calls are automatically directed to the optimal line for
cost optimization.
VoIP PBX connected to
the ISDN network
Voice over IP 1-7
1.4.1.3 VoIP for companies through SIP trunking
One of the biggest hurdles for companies that fully migrate to VoIP is
to maintain the existing telephone numbers. Normal provider SIP
accounts come with a telephone number for the transition to the
landline telephone network, but generally these numbers are selected
from a pool of numbers available to the provider. However, for
companies with a large number of telephone subscribers and
numbers, it is of decisive importance that existing telephone and
extension numbers are maintained after migrating to VoIP.
With the SIP trunking function, entire ranges of telephone numbers
made up of external numbers and their associated extensions can be
mapped by Swyx VoIP Routers over a single connection to a SIP
provider, assuming that the provider also supports Direct Dialing In
(DDI) and can provide multiple connections simultaneously.
Generally speaking, SIP providers that offer SIP trunking can acquire
the existing telephone numbers from the former telecomms provider.
1.4.1.4 Connecting local exchange lines with a remote SIP gateway
Companies with nation-wide and internationally distributed sites are
often interconnected with VPN already. A Swyx VoIP Router can be
used not only to connect the SIP, ISDN and analog telephones at a
branch office to the SIP-PBX at headquarters; it can also integrate the
branch office's local telephone lines into corporate communications
with help of the "SIP Remote Gateway" function.
The SIP remote gateway is active for outgoing and incoming calls.
• A company headquarters in New York can, for example, use a
Swyx VoIP Router with SIP gateway located at the Los Angeles
branch office to telephone with customers and suppliers located
in Los Angeles at local rates ("local break-out").
• For improved availability to customers located abroad, the New
York headquarters can, for example, use a Swyx VoIP Router
with SIP remote gateway located at their sales office in Italy.
Customers can then reach support or service numbers via a
standard national telephone number. Calls over the local
exchange line are received and directed within the company
network to the responsible employee. Call routing can be used
which identifies the customer's calling number and
automatically selects the appropriate connection to be used for
forwarding the call.
1-8 Voice over IP
Swyx VoIP
Local telephone network
Router
Branch office Headquarters
Internet
VPN tunnel
Advantages of the SIP remote gateway:
• The local telephone connection at any site is available for use by
any of the offices throughout the entire company.
• National and international long-distance calls can be mapped to
local or regional calls, so saving costs.
• Automatic routing of incoming calls to the responsible
employee.
1.4.1.5 Connecting sites without a SIP PBX
Companies with widely disperse offices and without their own SIP
PBX can also take advantage of VoIP site coupling. In this "Peer-toPeer" scenario, a Swyx VoIP Router has been implemented at both
locations.
VoIP telephones
SwyxConnect
VoIP PBX
Along with data transfer via VPN, it is also possible to use VoIP
functions between the two locations.
The advantages of peer-to-peer site coupling
• ISDN and analog PBXs at different locations can form a
common internal telephone network.
• An SIP PBX is not necessary.
• Calls within the company network are at no charge.
• Outgoing calls are automatically directed to the optimal line for
cost optimization.
• Incoming calls can be switched directly to the appropriate
employee at a different location.
Voice over IP 1-9
Example: Sites with ISDN or analog lines
VoIP subscribers
Analog fax
machines and
telephones
Swyx VoIP Router
ISDN PBX
ISDN telephones
Internet
VPN tunnel
PSTN
1.4.2 The central position of the Swyx VoIP Router
Swyx VoIP Router take up a central position in the switching of
telephone calls between internal and external subscribers over the
different channels of communication. Depending on the model and
equipment, the devices interconnect the following communication
participants and channels into a common telephone infrastructure.
1. Internal VoIP terminal devices connected to LAN, WLAN and
DMZ, such as SIP telephones and SIP softphones
2. The internal telephone infrastructure with ISDN or analog PBX
and ISDN and analog telephones
3. Analog terminal devices, internally connected either into the
ISDN network via a PBX with a/b ports, or alternatively into the
VoIP network over an ATA (Analog Telephone Adapter)
4. External SIP providers and all of the external subscribers attainable via them
5. Upstream SIP PBXs with all of the internal and external subscribers attainable through it
6. The external telephone world via an exchange line or upstream
PBX, and all of the external subscribers available via the land-line
network
VoIP subscribers
Swyx VoIP Router
Analog
telephones
Analog PBX
1-10 Voice over IP
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1.4.2.1 Users and lines
Telephony subscribers in internal areas can take part in voice
communications and, in the SwyxConnect VoIP environment, are
referred to as "users". The SwyxConnect differentiates between:
• ISDN users
A maximum of 40 terminal devices connected over the ISDN
network, including ISDN and analog devices connected to an
upstream ISDN PBX.
When connecting downstream PBXs to point-to-point lines, the
number of possible ISDN subscribers is determined by the
length of the extension number (DDI). In this case, all of the
telephones and terminal equipment connected to the PBX can be
mapped with a single ISDN user entry.
• Analog users
Two devices connected to the analog interfaces
• SIP users
A maximum of 32 SIP terminal devices connected over LAN,
WLAN and DMZ and analog devices connected with an ATA.
The external paths of communication available to the users are
known as "lines". The SwyxConnect differentiates between the
following lines:
Voice over IP 1-11
•ISDN
A connection to an ISDN NTBA over the TE interface. The NT
interface can additionally be used to connect ISDN terminal
devices directly or via a downstream ISDN PBX.
•Analog
A connection to an analog exchange line or to an extension line
of an upstream analog PBX.
• SIP lines
Maximum 16 SIP lines There are three different types of SIP
line:
• A "Single account" line acts like a normal SIP account with a
single telephone number. The internal users can all make use
this account for making SIP calls, although only one call can
be conducted at a time.
Depending on the provider services, these lines can be used to
reach subscribers in the provider networks, subscribers in other
SIP networks (partner networks), or even land-line subscribers.
Your own availability at your own telephone number or even
solely with an SIP name over the Internet also differs from provider to provider.
• A "trunk" line acts like an extended SIP account with a main
external telephone number and multiple extension numbers.
Internal users use this account in parallel and several calls can
be made simultaneously (until the maximum available
bandwidth is exhausted).
• As a "SIP gateway" line, the Swyx VoIP Router provides a
remote SIP PBX with a transition to the local ISDN network.
The SIP gateway is registered at the SIP PBX with a single
number, although several calls can be conducted at once
(until the maximum available bandwidth is exhausted). The
connection between the SIP PBX and the Swyx VoIP Router
is normally established over a VPN connection.
• A "link" line acts like a trunk line without limitation to one
main external telephone number and multiple extension
numbers. Internal users use this account in parallel and
several calls can be made simultaneously (until the maximum
available bandwidth is exhausted).
1-12 Voice over IP
•SIP PBXs
Maximum 4 connections to upstream SIP PBXs. These lines are
generally connections to large PBXs in the network at headquarters which can be reached via a VPN connection.
The precise number of users and lines available varies between
models and software options.
1.4.3 VoIP characteristics of the Swyx VoIP Routers
1.4.3.1 Multiple ISDN/analog interfaces
The ISDN/analog interfaces of the Swyx VoIP Router can be
switched as internal or external connections and, depending on the
model, offer up to eight parallel voice channels. This allows, for
example, an existing PBX to be additionally equipped with SIP and
connected to an upstream VoIP PBX. Subscribers can simultaneously
make calls via ISDN and analog telephones, SIP equipment, or
softphones to other telephone subscribers, both internally and
externally. The transition between SIP and ISDN/analog is automatic
and invisible to the user.
1.4.3.2 Telephone even during a power cut
With life-line support and power relay to the internal ISDN port, it
remains possible to telephone over the conventional telephone
network even in case of a power outage. ISDN backup, load
balancing and VRRP in combination with Ethernet ports as WAN
interfaces provide SIP connections with redundancy and high
reliability. If a SIP remote station should fail, switching automatically
reverts to the conventional telephone network. This ensures that
telephony is just as reliable as ever, even with VoIP.
1.4.3.3 Point-to-multipoint and point-to-point connections with ISDN
For ISDN, Swyx VoIP Routers support point-to-multipoint and pointto-point connections:
• Point-to-multipoint connection (point-to-multipoint): Up to 8
ISDN terminal devices can be connected to this type of
connection. Terminal equipment can include ISDN telephones
and ISDN PBXs, which can be used for connecting yet more
equipment. As an alternative, a Swyx VoIP Router can be
connected to a point-to-multipoint connection.
Voice over IP 1-13
• Point-to-point connection (point-to-point): This type of device is
suitable for the connection of one ISDN device only, generally
an ISDN PBX. As an alternative, a Swyx VoIP Router can be
connected to a point-to-point connection.
To connect a Swyx VoIP Router, the interface that is used is set up
for the type of line in use.
Equipment connected to an ISDN connection can be addressed in two
ways:
• The devices are addressed with a multiple subscriber number
(MSN) that is linked to the ISDN connection and cannot be
influenced.
• Terminal devices are addressed via a Direct Dialing In-Number
(DDI). However, only the main external number is associated
with the telephone line; the extension numbers that address the
individual terminal devices can be chosen at will and are merely
suffixes to the main number. The main number, extension and
area selection code (not including the leading zero) can be at the
most 11 characters long.
The terms "point-to-multipoint connection" and "point-to-point
connection" are used in many countries to describe the technical
implementation of point-to-multipoint with MSN and point-to-point
with DDI. Other countries may use different types of connection and
other combinations of protocol and call-number type, or even
different names. Please refer to your telephone network operator for
the technical specifications of your ISDN connection.
1.4.3.4 Bandwidth reservation with failover
High-performance VPN functions allow the reliable transmission of
voice and data between company sites. This spares the telephone bill
from internal communications. A professional firewall, versatile
routing functions and excellent Quality of Service mechanisms make
the Swyx VoIP Router a comprehensive solution for secure voice and
data communication in a single compact device. All functions are
integrated into the central management functions.
1-14 Voice over IP
1.5 Just what can your Swyx VoIP Router do?
The following table provides a comparison of the properties and
functions of your device.
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Applications
Internet access ✔✔✔
LAN-LAN coupling over VPN ✔✔✔
LAN-LAN coupling over ISDN ✔✔✔
RAS server (over VPN) ✔✔✔
RAS server (over ISDN) ✔✔✔
IP router ✔✔✔
IPX router (over ISDN), for example for coupling
✔✔✔
Novell networks or for dialing in to Novel networks
NetBIOS proxy for coupling Microsoft peer-to-peer
✔✔✔
networks over ISDN
DHCP- and DNS server (for LAN and DMZ) ✔✔✔
N:N mapping for routing networks with the same IP-
✔✔✔
address ranges over VPN
Configuring LAN ports as additional WAN ports ✔✔✔
Policy-based routing ✔✔✔
Load balancing for bundling multiple DSL channels 4 chan-
nels
2 chan-
nels
2 chan-
nels
Backup solutions and load balancing with VRRP ✔✔✔
NAT Traversal (NAT-T) ✔✔✔
DMZ with configurable IDS checks ✔✔✔
ISDN leased lines ✔✔✔
LANCAPI server to provide office applications such as
✔✔✔
fax or answering machine via the ISDN interface.
VoIP functions
SIP proxy Management of local SIP users (regis-
✔✔✔
tration/authentication)
Just what can your Swyx VoIP Router do? 1-15
SIP, ISDN and
analog
gateway
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Mapping of public SIP-provider
✔✔✔
accounts as telephone lines
SIP trunking for mapping SIP
✔✔✔
accounts with external root numbers
and extensions.
Registration at and switching to
✔✔✔
upstream SIP PBXs
Individual/shared password for
✔✔✔
authentication
Automatic registration and forwar-
✔✔✔
ding of SIP users
Automatic bandwidth management
✔✔✔
and prioritization of SIP connections
Number of local subscribers 32 x
SIP
40 x
ISDN
Free choice from available ISDN S0
✔✔✔
buses
Operation at exchange lines or exten-
✔✔✔
sion lines
Operation at point-to-multipoint lines
✔✔✔
or point-to-point lines
Automatic registration and authenti-
✔✔✔
cation of local ISDN subscribers as
SIP users
Registration of ISDN and analog
✔✔✔
users as SIP users at upstream SIP
PBXs
Switching between local and remote
✔✔✔
ISDN, analog and SIP users
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32 x
SIP
40 x
ISDN
2 x ana-
log
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32 x
SIP
40 x
ISDN
1-16 Just what can your Swyx VoIP Router do?
Remote gateway function for
mapping local exchange lines to a
remote SIP PBX
ISDN supplementary services CLIP,
CLIR
En-block and individual dialing with
adjustable wait time until completion
Inband tone signaling to the German
standard for ISDN users
Call router Central switching of all connections
(SIP and ISDN/analog)
Number translation by mapping,
numeral replacement and number
supplementation
Rules for routing according to dialed,
outgoing call number, line and
domain
Multiple cycles, also forced after
number replacement
Up to two destinations per routing
rule as a backup
Rule-based rejection of calls ✔✔✔
Supplementation of call-number
prefixes per line
Supplement/remove root numbers per
line
Voice processing
Echo canceling and de-jitter buffer for
SIP connections
Transparent pass-through for negotiated codecs
Interaction on codec negotiation
(filter, quality, bandwidth)
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✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
✔✔✔
Just what can your Swyx VoIP Router do? 1-17
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WAN connections
Connector for DSL or cable modem ✔✔✔
Integrated ADSL modem (with ADSL2+) ✔✔✔
ISDN S
connection in NT mode for connecting
0
1
1
2
downstream ISDN devices (ISDN telephones, ISDN
PBXs) to the Swyx VoIP Router.
Switchable to TE mode.
✔
✔*
✔
* Not suitable for connection to external exchanges
(e.g. telephone network).
ISDN S
connection in TE mode for connecting the
0
1
1
2
Swyx VoIP Router to an external ISDN connection, e.g.
to an NTBA or to an upstream ISDN PBX.
Switchable to NT mode.
Power relay; ISDN voltage available at the external
connector is passed through to the internal ISDN port,
providing power to any connected equipment.
Internal power supply for the ISDN NT connector,
✔
ISDN1
to
ISDN2
✔
✔
✔
ISDN1
to
ISDN3
providing power to a maximum of two connected
telephones.
Analog connector to connect an analog terminal device
2
or an analog PBX (tone dialing).
Analog connector for connecting the Swyx VoIP Router
1
to an analog exchange line or to an upstream analog
PBX (tone dialing), combined with ISDN1.
Relay of signals and power from the analog exchange
✔
line to Analog1 when router switched off (life-line)
Internal power supply for the analog connections,
✔
providing power to one connected device each.
Life-line support to ensure functional telephony during
✔✔
power outages or with a non-configured VoIP Call
Manager
Connection of external analog or GPRS modem to the
✔✔✔
COM port (requires the LANCOM Modem Adapter
Kit)
1-18 Just what can your Swyx VoIP Router do?
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LAN connection
Separate FastEthernet LAN ports, individually
422
switchable, e.g. as LAN switch or separate DMZ ports;
auto crossover.
Alternatively switchable as a WAN interface for
connecting SDSL modems.
USB connector
USB 2.0 host port (full speed: 12 Mbps) for connecting
✔✔✔
a USB printer and for future extensions
Security functions
IPSec encryption via external software (VPN client) ✔✔✔
5 integrated VPN tunnels for secure network connec-
✔✔✔
tions
IPSec encryption in hardware (optional; activated with
✔✔✔
the VPN-25 option)
IP masquerading (NAT, PAT) to conceal individual
✔✔✔
LAN workstations behind a single public IP address.
Stateful-inspection firewall ✔✔✔
Firewall filter for blocking individual IP addresses,
✔✔✔
protocols and ports
MAC address filter regulates, for example, LAN-
✔✔✔
workstation access to the IP routing function
Protection of the configuration from brute-force attacks. ✔✔✔
Configuration
Configuration with LANconfig or via web browser;
✔✔✔
additional terminal mode for Telnet or equivalent terminal programs; SNMP interface and TFTP server
function.
Remote configuration via ISDN (with ISDN PPP
✔✔✔
connections, e.g. via Windows Dial-Up Networking).
Serial configuration interface ✔✔✔
Just what can your Swyx VoIP Router do? 1-19
Call-back function with PPP authentication mecha-
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✔✔✔
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nisms allowing only predefined ISDN call numbers
FirmSafe for no-risk firmware updates ✔✔✔
1-20 Just what can your Swyx VoIP Router do?
2 Installation
This chapter will assist you to quickly install hardware and software.
First, check the package contents and system requirements. The
device can be installed and configured quickly and easily if all
prerequisites are fulfilled.
2.1 Package content
Before beginning with the installation, please check that nothing is
missing from your package. Along with the device itself, the box
should contain the following accessories:
Power adapter
LAN connector cable (green connectors)
ADSL connector cable (transparent connectors)
ISDN connector cable (light-blue connectors)
Adapter to cross-over the contacts for
reconfigured ISDN interfaces
Analog cable, RJ11 connector to TAE-NF socket
(German standard) for connecting analog terminal
devices or PBXs
Analog cable, RJ45 connector (yellow marking) to
RJ11 connector for connecting to an analog
exchange line.
Adapter, RJ11 socket to TAE-F plug (for Germany)
Connector cable for the configuration interface
SwyxConnect CD
Printed documentation (Installation Guide, manual)
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✔✔✔
111
111
112
112
2
1
1
✔✔✔
✔✔✔
✔✔✔
Should anything be missing, please take up immediate contact to your
dealer or to the address on the delivery note supplied with your
device.
Installation 2-1
2.2 System requirements
LANCOM
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Power
Online
ADSL
ETH 3
ETH 4
ISDN 1
ISDN 2
ETH 1
ETH 2
VPN
SwyxConnect
1723
Analog/ADSL
Power
Online
ADSL
ETH 1
ETH 2
ISDN 1
ISDN 2
Analog (⌧)
Analog 1
VPN
Analog 2
Computers that connect to a SwyxConnect must meet the following
minimum requirements:
• Operating system that supports TCP/IP, e. g. Windows XP,
Millennium Edition (Me), Windows 2000, Windows 98,
Windows 95, Windows Windows NT, Linux, BSD Unix, Apple
Mac OS, OS/2.
• Access to the LAN via the TCP/IP protocol.
The LANtools also require a Windows operating system. A web
browser under any operating system provides access to WEBconfig.
2.3 Introducing the SwyxConnect
This section introduces your device. You will find an overview of all
status displays, connectors and switches here.
2.3.1 Status displays
Depending on the range of functions of the model, SwyxConnects
have different numbers of front-mounted status displays.
2.3.1.1 Front
Status displays on the front of the device provide information about
operational and connection status:
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2-2 System requirements
Online
Power
Online
Power
LANCOM
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ADSL
ISDN 1
ISDN 2
ETH 1
ETH 2
ETH 3
ETH 4
ADSL
ISDN 1
ISDN 2
Analog (
Analog 1
Analog 2
ETH 1
ETH 2
VPN
VPN
SwyxConnect
Analog/ADSL
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