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

80 C
HAPTER
7: S
UPPLEMENTARY
V
OICE
C
ALL
S
ERVICES
Caller ID
The ISDN LAN Modem supports Caller ID and Caller ID Blocking.
Caller ID
Caller ID is supported on the ISDN LAN Modem. If you subscribe to this service, the
telephone number of the calling party is displayed on the caller ID device
connected to the ISDN LAN Modem’s phone port that is called.
The name of the caller may or may not be displayed even if your caller ID device
and service support this feature. Not all telephone companies display the Caller ID
name on a residential ISDN line. Check with your telephone company.
When both B channels are in use, Caller ID is not available. One
B channel must be available to provide the Caller ID information.
Caller ID Date and Time
The date and time displayed by your Caller ID unit is set according to the date and
time on the workstation connected to the ISDN LAN Modem when the ISDN LAN
Modem is powered on. If the date and time is incorrect, connect a workstation to
the ISDN LAN Modem that has the correct date and time and then power cycle the
ISDN LAN Modem. Once it is powered up, launch your Web browser and go to the
ISDN LAN Modem’s main page at
http://3com.oc.lanmodem/
Caller ID Blocking
To allow or prevent your telephone number from being displayed on a remote
Caller ID device, do the following. By default your telephone number is displayed.
Not all telephone companies support Caller ID Blocking. Check with your
telephone company. If Caller ID Blocking is not provided on your ISDN line, then
you cannot use this feature.
1
Go to the ISDN LAN Modem’s main page (
http://3com.oc.lanmodem/
).
2
Click
ISDN Parameters
.
3
Next to
Outgoing Caller ID Block
, select the port number box(es) for which you
would like Caller ID Blocking enabled. Clear the port number box(es) for which
you would like Caller ID Blocking disabled.
For instance, if you check the box labeled Port 1, calls made from the telephone
connected to that port will not display the telephone number to the user at the far
end.
4
Click
Submit
.