Understanding Modem Controls; Configuring V.90 Modem Control Parameters - 3Com Dual 56K User Manual

Configuring V.90
Modem Control
Parameters
Understanding Modem
Controls
4 In the Local Domain Name field, you may choose to enter a name to identify this
particular LAN on a network. Note that this field is not required. Leave blank if you
are unsure about how to configure a local domain name.
5 Check the Enable DHCP server box to enable it or clear the box to disable it.
WARNING: If you change the IP address and/or the subnet mask of your Dual 56K
LAN Modem, the Dual 56K LAN Modem will re-initialize itself when you submit
the changes by clicking Submit. When the re-initialization occurs, all calls are
terminated, and you may have to reconfigure the IP addresses on the computers
on the LAN.
6 For NetBIOS filtering, make your selection from the drop-down list box.
7 Click Submit.
If you wish to password protect the configuration profile of the Dual 56K LAN
Modem, refer to "Locking and Unlocking the Configuration."
Most users will be able to safely leave the modem control parameters set to their
default values. Advanced users may further define the manner in which the LAN
Modem operates when placing V.90 calls. This section describes modem control
parameters and provides instructions for changing these parameters.
Each service provider that you configure (up to four) is automatically associated
with its own corresponding modem control profile. If you would like to further
define the performance of the modems for each service provider, you may do so
as described in this section. Table 5 gives a description of each modem control
parameter.
Table 5 Modem Control Parameters
Modem Control Parameter
US/ITU-T answer sequence
Guard Tone
56K
Pulse (rotary) dial make/break
ratio
Minimum Connect Speed
Speaker Operations
Dialing
Data Compression
Error Control (ARQ)
Advanced Modem init. String
Configuring V.90 Modem Control Parameters
Description
Allows you to set your answer sequence.
Allows you to specify the guard tone for your geographical
region.
If enabled: Sets the minimum CONNECT rate.
If disabled: Sets the ceiling CONNECT rate to 33600.
Sets the make/break ratio for pulse dialing.
Sets the minimum speed at which the modem is allowed to
connect.
Allows you to change your LAN Modem's speaker settings.
Specifies either pulse or tone dialing.
Sets your data compression preference
Sets your error control preference
Advanced users can further modify the modem settings
each time a call is made.
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