3Com Nbx 100 And Ss3 Nbx Administration Guide

							Configuring and Managing Analog Line Card Ports211
4In the Add Line Card Port dialog box, specify the port information, and 
then click 
OK. The fields are described in Table 32.
Table 32 Add Line Card Port Fields
FieldPurpose
Port TypeSelect POTS (Plain Old Telephone Service) when 
configuring a port to connect to an analog telephone 
line.
Select ConneXtions H.323 Gateway if you are using this 
port to support the H.323 gateway product. Note: You 
cannot add a ConneXtions H.323 Gateway unless you 
have entered the proper license key using the NBX 
NetSet utility.
MAC AddressThe hardware address of the port, assigned at the 
factory.
If you are configuring a ConneXtions H.323 Gateway, 
the MAC address is the address of the network 
interface card of the computer that is hosting the 
gateway program. ConneXtions generates the address 
automatically, so do not enter a MAC address for H.323 
Gateway.
For more about installing line cards and determining the 
port MAC address, see the NBX Installation Guide.
When you type a MAC Address, use the format 
XX:XX:XX:XX:XX:XX, where each X represents a 
hexadecimal digit (0 through f).
Channel NumberThe number of the port or channel on the Analog Line 
Card.
The 3C10114C (Analog Terminal Card) uses a single 
MAC address (there was one MAC address per port on 
the previous model of the ALC, the 3C10114). To 
specify a port on the card, you must enter a channel 
number (1 to 4) in this field.
If you add a 3C10114 ALC, leave this field empty. If you 
modify the settings for a port on a 3C10114 ALC, this 
field contains N/A (not applicable).
NameA unique name for the port.
This name appears on the telephone display and in 
reports, to help you identify the port.
Extension NumberType an Extension Number or leave this box empty to 
have the system use Auto Discovery to assign the next 
unused extension for line card ports.
By default, Auto Discovery begins at extension 750 for a 
3-digit dial plan, or 7250 for a 4-digit dial plan. 
						

							212CHAPTER 3: DEVICE CONFIGURATION
AutoExtSpecify the Attendant Console extension or 500. (The 
default is 500 if you leave this box empty.)
Auto Ext works with the Button Mappings feature, 
which lets you map CO lines directly to Access buttons 
on individual telephones and determine the destination 
path for an incoming call on this line. See Table 33
 for 
details.
Time OutSpecify the time, in seconds, after which this line goes 
to the Attendant Console.
Silence Suppression If you enable silence suppression, the system transmits 
fewer packets during a conversation. 
The silence suppression setting for each port works in 
conjunction with the system-wide silence suppression 
setting.
If you select Default, this port operates under the 
control of the system-wide Silence Suppression control. 
(Default is followed by either On or Off to indicate the 
current setting of System-wide Silence Suppression.)
Select On or Off to override the system-wide setting.
With Silence Suppression enabled, the line card port 
detects silence in the audio stream, such as a pause in 
conversation, and sends no packets. This reduces 
network traffic during silences in conversations.
The receiving NBX telephone generates white noise for 
the periods represented by silence indicator packets. A 
careful listener might notice the difference between 
generated and actual background noise.
Trunk to TrunkSelect Unrestricted to enable incoming calls to be 
transferred to another line card port.
For example, enable Trunk to Trunk transfers if you plan 
to connect a Voice Over IP (VOIP) gateway to a line card 
port and let callers use the NBX system to access the 
telephone system from a remote location and use it to 
make CO calls.
Select Restricted to prevent transfers from one line card 
port to another. For example, disable Trunk to Trunk 
transfers if you are concerned about whether a caller 
might use this feature to avoid normal toll charges.
If a telephone is locked, the user cannot make a Trunk 
to Trunk transfer.
Table 32 Add Line Card Port Fields (continued)
FieldPurpose 
						

							Configuring and Managing Analog Line Card Ports213
Ta b l e 3 3 describes the behavior in Auto Extension Configuration:
Disable Caller IDOptionally enable or disable the caller ID function. This 
also eliminates the approximately six-second delay on 
the Auto Attendant.
Table 32 Add Line Card Port Fields (continued)
FieldPurpose
Table 33   Auto Extension Configuration
Button Mapping Setting 
for This LineAuto Extension 
SettingIncoming Call Behavior
Not mapped to any telephoneExtension of the 
ReceptionistReceptionist’s telephone rings. If no one answers, the call 
transfers to the call coverage point defined for the 
Receptionist’s telephone.
User Configuration > Users > User Settings > Call Forward
The transfer occurs after the number of rings specified for the 
Receptionist’s telephone.
User Configuration > Users > User Settings > Call Forward
Because the analog line is not mapped to any telephone, the 
Time Out values (Open, Closed, Lunch, and Other) for the 
Analog Line Card port are not used.
Device Configuration > Line Card Ports > Modify
Not mapped to any telephone500Calls go directly to the Automated Attendant without ringing 
any telephone.
Mapped to a button on the 
Receptionist’s Telephone (or 
to a button on an Attendant 
Console associated with the 
Receptionist’s telephone)Extension of the 
ReceptionistReceptionist’s telephone rings. If no one answers, the call 
transfers to call coverage point defined for the Receptionist’s 
telephone.
User Configuration > Users > User Settings > Call Forward
The transfer occurs after:
■The number of seconds specified on the Time Out line in 
the Modify Line Card Port dialog box for the appropriate 
time of day (Open, Closed, Lunch, Other):
Device Configuration > Line Card Ports > Modify
PLUS
■The number of rings specified in the user settings for the 
Receptionist’s telephone.
User Configuration > Users > User Settings > Call Forward
Example: If the Time Out value for the Analog Line Card port 
is 12 seconds, the equivalent number of rings is 2. If the Call 
Forward settings for the receptionist’s telephone is 4 rings, 
then the call transfers after 6 rings. 
						

							214CHAPTER 3: DEVICE CONFIGURATION
5Click OK.
6Connect your CO line to the configured port.
Modifying a
Line Card PortYou can modify a line card port that is already configured.
To modify a line card port:
1In the NBX NetSet - Main Menu window, click 
Device Configuration. The 
Device Configuration dialog box appears (Figure 49
).
2Click the Line Card Ports tab. Line Card Ports dialog box appears 
(Figure 72
).
3Select the port you want to modify from the list.
4Click Modify. The Modify Line Card Port dialog box appears (Figure 74
).
Mapped to a button on the 
Receptionist’s Telephone (or 
to a button on an Attendant 
Console associated with the 
Receptionist’s telephone)500Receptionist’s telephone rings. If no one answers, the call 
transfers to the Automated Attendant.
NOTE: The call coverage point defined for the receptionist’s 
telephone has no affect.
The transfer occurs after the number of seconds specified on 
the Time Out line in the Modify Line Card Port dialog box for 
the appropriate time of day (Open, Closed, Lunch, Other).
Device Configuration > Line Card Ports > Modify
Mapped to a button on a user 
telephone (or to a button on 
an Attendant Console 
associated with the user’s 
telephone)Extension of the 
ReceptionistUser telephone rings. If no one answers, the call transfers to 
the Receptionist’s telephone.
The transfer occurs after the number of seconds specified on 
the Time Out line in the Modify Line Card Port dialog box for 
the appropriate time of day (Open, Closed, Lunch, Other).
Device Configuration > Line Card Ports > Modify
If the receptionist’s telephone is not answered, the call 
transfers to the call coverage point defined for the 
receptionist’s telephone.
User Configuration > Users > User Settings > Call Forward
Mapped to a button on a user 
telephone (or to a button on 
an Attendant Console 
associated with the user’s 
telephone)500User telephone rings. If no one answers, the call transfers to 
the Automated Attendant.
The transfer occurs after the number of seconds specified on 
the Time Out line in the Modify Line Card Port dialog box for 
the appropriate time of day (Open, Closed, Lunch, Other).
Device Configuration > Line Card Ports > Modify
Table 33   Auto Extension Configuration  (continued)
Button Mapping Setting 
for This LineAuto Extension 
SettingIncoming Call Behavior 
						

							Configuring and Managing Analog Line Card Ports215
Figure 74     Modify Line Card Port Dialog Box
5Specify the port information. The fields are the same as those described 
in “Configuring a Line Card Port Manually”
 earlier in this chapter.
6Click OK.
Removing a
Line Card PortWhen you remove a line card port that is already configured, you remove 
the port information from the database.
To remove a line card port:
1In the NBX NetSet - Main Menu window, click 
Device Configuration. The 
Device Configuration dialog box appears (Figure 49
).
2Click the Line Card Ports tab. Line Card Ports dialog box appears 
(Figure 72
).
3Select the port that you want to remove from the list.
4Click Remove. A prompt asks you to confirm that you want to remove the 
port.
5Click Ye s to remove the port. 
						

							216CHAPTER 3: DEVICE CONFIGURATION
Verifying Line Card
Port StatusYou can verify the status of a configured line port at any time.
To view the status of a line card port:
1In the NBX NetSet - Main Menu window, click 
Device Configuration. The 
Device Configuration dialog box appears (Figure 49
).
2Click the Line Card Ports tab. Line Card Ports dialog box appears 
(Figure 72
).
3Select the port that you want to check from the list and click Status. The 
Device Status dialog box appears (Figure 75
).
Figure 75     Device Status Dialog Box
Ta b l e 3 4 describes the fields in the Device Status dialog box.
Table 34 Device Status Dialog Box Fields
FieldPurpose
MAC AddressThe hardware address of the port, assigned at the factory.
If you are configuring a ConneXtions H.323 Gateway, the 
MAC address is the address of the network interface card of 
the computer that hosts the gateway program. 
ConneXtions generates the address automatically, so do 
not enter a MAC address for H.323 Gateway.
For information about installing line cards and determining 
each port’s MAC address, see the NBX Installation Guide.
The format for a MAC Address is XX:XX:XX:XX:XX:XX. Each 
X represents a hexadecimal digit (0 through f). 
						

							Configuring and Managing Analog Line Card Ports217
NameA unique name for the port.
This name appears on the telephone display and in reports, 
to help you identify the port.
ExtensionType an Extension Number or leave this box empty to use 
Auto Discovery to assign the extension for line card ports.
By default, Auto Discovery begins at extension 750 for a 
3-digit dial plan, or 7250 for a 4-digit dial plan.
StatusThe current state of the port.
Values: Online, Offline, Unknown
Software VersionThe version of software currently installed on the line card 
and used by the Digital Signal Processors (DSPs).
Dialog RefreshSpecifies how often to renew the information that appears 
in the Status dialog box.
Device RefreshForces the port to send a status message to the Call 
Processor. (A port sends a status message to the Call 
Processor every 30 seconds.)
Reset DeviceReboots the port, which resets communications with the 
Call Processor and receives a new download of its operating 
software.
If a call is in progress on the port, resetting the port 
disconnects the call.
Time Last SeenA time stamp that identifies the date and time the line card 
port communicated with the Call Processor.
Error Count,
Error Code, 
POTS State, POTS Init, 
Ring State, Loop State, 
Performance Data, 
Debug Data, 
Actor DataAdvanced diagnostic data for use only by a qualified service 
person.
Table 34 Device Status Dialog Box Fields (continued)
FieldPurpose 
						

							218CHAPTER 3: DEVICE CONFIGURATION
Rebooting a
Line Card PortTo reboot a line card port:
1In the NBX NetSet - Main Menu window, click 
Device Configuration. The 
Device Configuration dialog box appears (Figure 49
).
2Click the Line Card Ports tab. The Line Card Ports dialog box appears 
(Figure 72
).
3From the list, select the port that you want to reboot.
4Click Status. The Device Status dialog box appears (Figure 75
).
5Click Reset Device.
6Click 
OK.
CAUTION:On the 3C10117 Analog Line Card, you can reboot individual 
ports without affecting the other ports. However, if you reboot a port on 
the 3C10117C Analog Line Card, all four ports on the card are rebooted. 
Active telephone calls on any of these ports are disrupted. 
Advanced SettingsThe Advanced Settings button enables you to set the audio gain and 
timing controls on each port of an Analog Line Card.
To set these parameters:
1In the NBX NetSet - Main Menu window, click Device Configuration.
2Click the Line Card Ports tab.
3Select one of the items from the list and click Advanced Settings. The 
Advanced Settings dialog box (Figure 80
) appears.
If you change any of the values in the Advanced Settings dialog box, the 
settings that you change persist if you later upgrade the NBX system 
software or change the regional software.
Default Values
To reset all parameters to the default values, click the Reset button.
Ta b l e 3 5
 describes each field in the dialog box.
Table 35   Analog Line Card Ports - Advanced Settings Parameters
FieldPurpose
MAC AddressThe factory-assigned MAC address for the Analog Line 
Card port. 
						

							Configuring and Managing Analog Line Card Ports219
Audio Level Controls
Audio Input Gain (dB)Set this value to control the volume of the audio signal 
from the telephone company’s central office (CO).
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: - 10 dB
Maximum: + 10 dB
Mute is a choice provided for testing purposes.
Audio Output Gain (dB)Set this value to control the volume of the audio signal 
sent to the telephone company’s central office (CO).
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: - 10 dB
Maximum: + 10 dB
Mute is a choice provided for testing purposes.
DTMF Output Level (dBm)Set this value to control the volume of the tones sent to 
the telephone company’s central office (CO).
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: - 14 dBm
Maximum: 0 dBm
Increment: 2 dBm per step
Table 35   Analog Line Card Ports - Advanced Settings Parameters (continued)
FieldPurpose 
						

							220CHAPTER 3: DEVICE CONFIGURATION
Call Progress Output Level 
(dBm)Set this value to control the volume of call progress 
tones (such as Ring-back and Dial Tone) sent to 
telephone company’s central office (CO).
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: - 30 dBm
Maximum: 0 dBm
Increment: 2 dBm per step
Line Interface Controls
Minimum On-Hook Time 
(msec)Sets this value to control the minimum time that this 
port goes on-hook as part of a normal disconnect. This 
parameter helps prevent the CO from falsely detecting 
Flash-Hook events.
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: 500 msec
Maximum: 5000 msec
Minimum Off-Hook Time 
(msec)Sets this value to control the minimum time that this 
port goes off-hook as part of a normal call connect.
Default: Depends on the country in which the NBX 
system is operating.
When you load a regional pack (Operations > 
Regional Software) and select the tones and cadences 
appropriate for your location (System Configuration > 
System Settings > Regional Settings > Advanced), the 
default value is set on your NBX system.
Minimum: 500 msec
Maximum: 5000 msec
Table 35   Analog Line Card Ports - Advanced Settings Parameters (continued)
FieldPurpose