3Com Nbx 100 And Ss3 Nbx Administration Guide

Configuring and Managing T1 Digital Line Cards311
Modifying Audio Controls
In a normal environment, you should not need to change the Audio 
Controls from their default settings. If you have an issue with sound 
quality and you cannot resolve it using the volume controls on the NBX 
Telephones, contact your technical support representative.
CAUTION:Do not change your Audio Controls settings unless you are 
instructed to do so by a qualified 3Com Technical Support representative.
Modifying a T1 GroupA...

312CHAPTER 3: DEVICE CONFIGURATION
Figure 129   Modify Group Dialog Box — T1 DS1
Figure 130     Modify Group Dialog Box — T1 ISDN PRI
6Make the desired changes to the group parameters. See the Help for 
details on each parameter.
7Enable the On Line check box to bring the group on line. 

Configuring and Managing T1 Digital Line Cards313
8Click Apply to effect the changes.
9Click OK.
Changing T1 Group Membership
You can change the channel membership in a group to accommodate 
changing needs.
To change group membership:
1Return to the Digital Line Cards tab.
2From the Select Device Type pull-down list, select either T1 Group List (for 
DS1), or ISDN PRI Group List (for ISDN PRI)
3Click Apply.
4Select the group for which you want to change membership.
5Click Membership. The dialog box that...

314CHAPTER 3: DEVICE CONFIGURATION
remove. If you do not select this option, the channel settings do not 
change.
7Optionally enable the Refresh Channels on Add/Remove check box. This 
refreshes each channel as you add or remove it.
8To remove a channel from the Member List, select the channel in the 
Member List and click >>.
Each channel must belong to a group. A channel can belong to only one 
group at a time. You cannot move a channel from the members list to the 
non-members list unless the system...

Configuring and Managing T1 Digital Line Cards315
Modifying T1 Card
ChannelsA channel is either a T1 DS1 or T1 ISDN PRI time slot. Each channel can 
accommodate a single telephone call. This section describes how to 
modify channels for an installed T1 Digital Line Card and how to view the 
status of an existing channel.
CAUTION:Do not modify channels unless a 3Com Technical Support 
representative advises you to do so. Modifying an ISDN channel 
disconnects any existing calls on that channel.
To modify...

316CHAPTER 3: DEVICE CONFIGURATION
Figure 133 shows the T1 DS1 Modify Channel dialog box. Figure 134 
shows the T1 ISDN PRI Modify Channel dialog box.
Figure 133     Modify Channel Dialog Box — T1 DS1
Figure 134     Modify Channel Dialog Box — T1 ISDN PRI 

Configuring and Managing T1 Digital Line Cards317
6Fill in or change the fields in the appropriate Modify Channel dialog box. 
See the Help for a description of each parameter. Enable the On Line 
check box to bring the channel on line. Click Apply and then OK.
The channel does not come online unless the card and the span are 
online.
Viewing the Status of a T1 Card Channel
To view the status of a channel on an installed T1 Digital Line Card:
1On the Digital Line Cards tab, select, from the Select Device...

318CHAPTER 3: DEVICE CONFIGURATION
Figure 136     Channel Status Dialog Box — T1 ISDN PRI
6View the status of the channel.
7Refresh the Channel Status dialog box.
aFrom the Dialog Refresh pull-down list, select:
■Manual — To manually refresh the Channel Status dialog box each 
time you click the Apply button.
■A time interval (5, 10, 15, 30, or 60 seconds) to automatically 
refresh the Channel Status dialog box at the specified intervals.
bEnable the Device Refresh check box.
8Click Apply, and then click...

Configuring and Managing T1 Digital Line Cards319
Figure 137   DSP Status Window
5Click Close to close the DSP Status window.
6Click Apply to make the changes. 
7Click OK.
Modifying IP Settings
for a T1 CardYou can modify the IP settings for a T1 Digital Line Card to meet 
changing requirements.
The board must be on the same subnetwork as the Call Processor to 
modify IP settings.
To modify the IP settings of a T1 Digital Line Card:
1In the NBX NetSet - Main Menu window (Figure 97
), click 
Device...

320CHAPTER 3: DEVICE CONFIGURATION
Figure 138   Digital Line Card IP Settings Dialog Box — T1 DS1
4To assign IP addresses automatically, enter the first address in the First 
IP Address field. The system sequentially adds the remaining addresses.
Assigning IP Addresses One at a Time
To assign IP addresses one at a time:
1In the Digital Line Card IP Settings dialog box, click Assign Addresses 
Individually (Figure 93
).
2Enter the IP addresses that you want for the channels.
You must have IP licenses...