User manual
Table Of Contents
- Table of Contents
- About This Guide
- Introduction
- ISDN LAN Modem Functionality Description
- Hardware Description and Installation
- Setting Up TCP/IP for Windows and Macintosh
- Configuring the ISDN LAN Modem
- Advanced Configuration
- Before you Begin
- Setting Up Additional Service Providers
- Editing Service Provider Profiles
- Restricting Workstations from Accessing Service Provider(s)
- Configuring Your LAN Parameters
- Changing Data Call Parameters
- Changing Voice Call Routing
- Reserving DHCP Addresses
- Selective Password Protection
- Changing Your Password
- Setting Up Your ISDN Line Manually
- Locking and Unlocking the Configuration
- Configuring the ISDN LAN Modem from a Remote Location
- Supplementary Voice Call Services
- Placing, Receiving and Disconnecting Calls
- Troubleshooting and Maintenance
- Networking Primer
- What is a network?
- What is a LAN?
- What is a WAN?
- How does a LAN connect to a WAN?
- What is a LAN modem?
- What is ISDN?
- How do different devices communicate with each other?
- What is TCP/IP?
- What is an IP Address?
- What is a Subnet Mask?
- Dynamic and Static IP Addresses
- What is DHCP?
- What is DNS?
- What is NAT?
- What are numbered and unnumbered links?
- How is overall throughput determined?
- What is a network?
- Using the Custom Web Browser
- ISDN LAN Modem Factory Defaults
- ISDN LAN Modem Specifications
- Ordering ISDN Service
- If You Place Your ISDN Order Through 3Com
- If You Place Your ISDN Order Through the Telephone Company
- Supplementary Voice Features Included with U, EZ-ISDN-1, V and EZ-ISDN 1A
- Limitations of ISDN Ordering Codes U, EZ-ISDN 1, V and EZ-ISDN 1A
- What If I Already Have ISDN Service?
- Table of ISDN Ordering Code Capabilities
- Glossary
- Index
- 3Com Corporation Limited Warranty

88 C
HAPTER
8: P
LACING
, R
ECEIVING
AND
D
ISCONNECTING
C
ALLS
■
Reviewing ISDN LAN Modem statistics
Refer to Chapter 9, “Reviewing Statistics,” for instructions.
Incoming calls for data transfer are not supported. For example, you cannot call
into the ISDN LAN Modem to use a computer as a server that others would dial
into and use for downloading information.
Receiving Voice Calls
Voice calls received by the ISDN LAN Modem will be routed to the analog
equipment connected to the voice ports. By default, incoming voice calls to
telephone number one are routed to Phone port one, and incoming voice calls to
telephone number two are routed to Phone port two.
To change the default routing, refer to “Changing Voice Call Routing” in Chapter
6.
Specialized telephone equipment such as some speakerphones, answering
machines, and fax machines that require more than 42 VAC ringing voltage may
not detect incoming calls.
Distinctive Ringing
You can configure the ISDN LAN Modem to distinguish between telephone rings
for calls to telephones connected to the ISDN LAN Modem’s phone ports. When
this feature is enabled, the ringing pattern for calls to telephone number one
changes to distinguish between calls to telephone number one and calls to
telephone number two.
By default this feature is disabled. To enable, do the following.
1
Go to the ISDN LAN Modem’s main configuration page:
http://3com.oc.lanmodem/
2
Click
ISDN Parameters
.
3
Locate
Distinctive Ringing
and then click the box labeled
Enable
.
4
Click
Submit
.
Disconnecting Data
Calls
You can disconnect data calls manually or use timers to disconnect calls
automatically.
Disconnecting Data Calls
Manually
To disconnect calls manually, do the following:
1
From the ISDN LAN Modem home page, click
Manual Calling
. Alternatively, if you
are using the custom browser, click
Dial/Hang Up
from the
Links menu bar.
The Manual Call Control window appears.
2
In the table, locate the name of the service provider from which you wish to
disconnect and then verify that the call is up under the
Status of Call
column.
3
Click
Hangup Call
.
A message indicates that the call is being disconnected.