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

78 C
HAPTER
7: S
UPPLEMENTARY
V
OICE
C
ALL
S
ERVICES
Call Waiting
Call Waiting allows you to place an active call on hold in order to answer another
incoming call on the same telephone number. By default, Call Waiting is enabled
on port 1 and disabled on port 2.
Telephone companies typically provide Call Waiting support on telephone number
1 only. For Call Waiting support on telephone number 2, you will have to have this
capability added to your ISDN line. For more information refer to Appendix E.
How to Configure Call
Waiting
To change the default setting, do the following.
1
Go to the ISDN LAN Modem’s main configuration page
(
http://3com.oc.lanmodem/
).
2
Click
ISDN Parameters
.
3
Locate
Call Waiting Enable
, and then clear the check box for the port(s) for which
you want Call Waiting disabled, or check the box for the port(s) for which you
want Call Waiting enabled.
You should disable Call Waiting on a port(s) to which a fax machine is connected
so that any fax calls are not interrupted.
4
Click
Submit
.