3Com Nbx 100 And Ss3 Nbx Administration Guide

Configuring VPIM Parameters Using the NBX NetSet Utility81
Table 16   Operations Management Dialog Box Fields
FieldPurpose
Operations statusThe status of the queue of outgoing voice mail messages.
Possible values: Starting, Ready, Processing, Stopped.
Number of outgoing 
messagesThe number of messages in the outgoing queue when this 
dialog box was last accessed or refreshed.
Outgoing Messages
Time WaitingThe number of minutes that the voice mail message has 
been waiting in the queue.
# AttemptsThe...

82CHAPTER 2: DIAL PLAN
StatisticsTo view the most recent statics for voice mail messages, click the Statistics 
button. The Statistics window (Figure 25
) appears. Table 17 lists the fields 
in this window and explains their purpose.
Figure 25   Statistics Window
Table 17   Statistics Window Fields
FieldPurpose
Incoming Messages
Total messages received 
by systemThe number of messages received by this NBX system 
from voice mailboxes on other systems
Total messages delivered 
to user mailboxesThe number...

Configuring VPIM Parameters Using the NBX NetSet Utility83
Outgoing Messages
Total messages submitted 
for external deliveryThe number of messages submitted by users of this 
NBX system for delivery to voice mailboxes on other 
systems
Total messages delivered 
to external recipientsThe number of messages for which a confirmation of 
delivery has been received.
Total messages returned 
to sender on failed 
deliveryThe number of messages that have been returned 
because they could not be delivered.
Failed...

84CHAPTER 2: DIAL PLAN
Advanced SettingsThe NBX system transmits VPIM voice mail messages by attaching them 
to e-mail messages that are sent using SMTP (Simple Mail Transfer 
Protocol) or ESMTP (Extended Simple Mail Transfer Protocol).
Click the Advanced Settings button to access the Advanced Settings 
dialog box (Figure 26
). Set the parameters to control the behavior of 
SMTP. Table 18
 describes the fields.
Figure 26   Advanced Settings Dialog Box
Table 18   VPIM Advanced Settings Dialog Box...

Configuring VPIM Parameters Using the NBX NetSet Utility85
SMTP HELO responseDefinition: The amount of time that the local 
system waits for an acknowledgement of a HELO 
message.
Detail: After the greeting, the local system sends 
either a HELO (or EHLO to get ESMTP) message to 
identify itself. The other site then responds with an 
acknowledgement of that message.
Minimum: None defined.
Default: 5 minutes
SMTP EHLO responseDefinition: The amount of time that the local 
system waits for acknowledgement...

86CHAPTER 2: DIAL PLAN
SMTP DATA responseDefinition: The time that the local system waits for 
an acknowledgement of a DATA command.
Detail: After the local system has specified all of the 
recipient information, it sends a DATA command to 
indicate that it is ready to send the mail message 
itself. It then waits for the other site to acknowledge 
the DATA command.
Minimum: 2 minutes
Default: 2 minutes
SMTP DATA END responseDefinition: The time that the local system waits, 
after sending the entire...

Configuring VPIM Parameters Using the NBX NetSet Utility87
Configuring Domain
Name Server
InformationWhen the SMTP utility attempts to send e-mail, it must be able to resolve 
a host name within an e-mail address and determine the proper IP 
address from that name. Domain Name Servers on the Internet perform 
this function. You can configure up to three DNS entries with the NBX 
NetSet utility. The NBX system uses the second and third entries if the first 
or second cannot be reached. To configure DNS...

88CHAPTER 2: DIAL PLAN
Overview of 
Virtual Tie LinesA Virtual Tie Line (VTL) provides a way to make calls between NBX system 
sites that are separated geographically but tied together by a Wide Area 
Network (WAN) connection. An NBX 100 system can support up to 8 
simultaneous VTL connections; a SuperStack 3 NBX system can support 
up to 48. VTLs are a licensed feature of the NBX systems.
On any NBX system, any licensed VTL connection can be used either for 
an incoming VTL call from any site or for an...

Overview of Virtual Tie Lines89
Figure 28   Multi-site network using Virtual Tie Lines
In the sample network shown in Figure 28, each site is set up to use a 
unique range of telephone extensions. The dial plan on each of the 
systems is configured so that whenever a call is made to an extension not 
located at the local site, the NBX system sets up a VTL connection to the 
appropriate site.
To make a call to a user in Dallas, a user in Chicago dials a Dallas 
extension (3000 through 3999). The dial plan...

90CHAPTER 2: DIAL PLAN
VTL Connections
Using Site CodesThe simpler way to implement VTL connections uses a site code, 
consisting of one or more digits that a user must dial to specify the site 
that is being called. This approach requires no restriction on the 
telephone extension ranges, but does require the caller to dial the site 
code digits as well as the extension.
A site code can by any number of digits you want, but typically, one- or 
two-digit numbers make the most sense. The dial plan at each...