3com SuperStack 3 NBX Manual De Usuario

C

HAPTER

 5: S

YSTEM

 C

ONFIGURATION

Audio Settings enable you to affect audio quality issues that are related to 
feedback (echo) or network congestion. Do not enable any Audio 
Settings check boxes unless you have a specific issue to resolve. You 
should rarely need to enable more than one check box to resolve an issue. 

Silence suppression is a method of reducing the number of packets 
transmitted during a conversation. Silence suppression can help you avoid 
dropped packets on a congested network. During a conversation there 
are periods of silence. A packet of silence takes up just as much 
bandwidth as a packet with audio data. If you enable Silence 
Suppression, the phone sends a 'silence indicator' when it senses the start 
of a silent period and it suppresses all subsequent voiceless frames. When 

IP VLAN Tagging 
Enabled

If you enable the IP VLAN Tagging Enabled check box, the NBX 
system VLAN tags outgoing voice and control packets 
intended for devices on the VLAN you specified in the Virtual 
LAN ID text box.

System-wide CLIR

Suppresses the transmission of caller ID for outgoing calls.

 Music On Hold 

Enables Ethernet multicasts for Music On Hold (MOH). MOH is 
automatically enabled if Music on Transfer is enabled.

MOH Audio should be enabled only if you have a MOH device 
connected to the system. 

Music on Transfer

Enables MOH audio for Call Transfer; requires MOH to be 
installed and enabled. Music on Transfer is automatically 
disabled if MOH is disabled.

One Button 
Transfer

Enables system users to transfer a call by pressing the Transfer 
button only once. If this box is not checked, call transfers 
require users to press the Transfer button once to start the call 
transfer and another time to complete the transfer of the call.

NBX Messaging

Allows you to enable or disable NBX Messaging after you 
install a third-party messaging license. By default, this check 
box is selected but not accessible until you install a third-party 
messaging license. If you disable NBX Messaging by clearing 
this check box, all NBX Messaging icons and headings become 
inactive throughout NBX NetSet.

Third-Party 
Messaging

This check box is active only if you have installed a third-party 
messaging license. You can enable the third-party messaging 
application by selecting this check box or by clearing the NBX 
Messaging check box.

Pulse Dialing

Enables pulse dialing for all telephones in the system.

Table 55   System Settings System-wide Dialog Box Fields  (continued)