3Com U.S. Robotics 56K Voice, Руководство пользователя

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Configuring V.90 Modem Control Parameters 83
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.”
Configuring V.90
Modem Control
Parameters
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.
Understanding Modem
Controls
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 Description
US/ITU-T answer sequence Allows you to set your answer sequence.
Guard Tone Allows you to specify the guard tone for your geographical
region.
56K If enabled: Sets the minimum CONNECT rate.
If disabled : Sets the ceiling CONNECT rate to 33600.
Pulse (rotary) dial make/break
ratio Sets the make/break ratio for pulse dialing.
Minimum Connect Speed Sets the minimum speed at which the modem is allowed to
connect.
Speaker Operations Allows you to change your LAN Modem’s speaker settings.
Dialing Specifies either pulse or tone dialing.
Data Compression Sets your data compression preference
Error Control (ARQ) Sets your error control preference
Advanced Modem init. String Advanced users can further modify the modem settings
each time a call is made.