Before you administer Email (Internet Messaging)
on the Avaya™ S3400 Message Server, carefully read the
planning information in this topic.
Email message size
Email (Internet Messaging) can have a significant
impact on the maximum size set for a subscriber's mailbox. An email
message can be a short memo or can include attachments of software
files of considerable size.
Maximum mailbox size
The S3400 converts all email message components into seconds of
space in the mailbox. The following table shows some mailbox sizes
in seconds, minutes, hours, and Mbytes. The mailbox size in seconds,
minutes, and hours depends on the type of audio encoding format
configured on your system. Your system can be configured in either
the GSM or G.711 audio encoding format. For more information about
audio encoding formats, see the MAS topic Configuring
the audio encoding format. You can define a subscriber's mailbox
size by editing the subscriber's assigned class-of-service.
Mailbox size, in seconds and (hours:minutes) |
Mailbox size, in Mbytes |
Notes |
GSM |
G.711 |
2400 (00:40) |
496 (00:08) |
3.78 |
— |
3600 (01:00) |
742 (00:12) |
5.66 |
— |
4800 (01:20) |
990 (00:16) |
7.55 |
— |
10426 (02:53) |
2150 (00:35) |
16.41 |
System default |
16384 (04:55) |
3379 (00:56) |
25.78 |
— |
40672 (11:30) |
8388 (02:33) |
64 |
System maximum for one subscriber's mailbox |
Maximum size of a message that a subscriber can create
The following table shows some size examples (in seconds, minutes,
and Mbytes) of email, fax, and voice mail messages that a subscriber
can create, including the system default size and maximum sizes.
The message size in seconds and minutes depends on which audio encoding
format (GSM or G.711) is administered on your system. You can define
the maximum size of a message that a subscriber can create by editing
the subscriber's assigned class-of-service.
Message length, in seconds and (minutes) |
Message size, in Mbytes |
Notes |
GSM |
G.711 |
636 (10.5) |
131 (2.1) |
1 |
— |
900 (15) |
186 (3.1) |
1.42 |
— |
1489 (24.81) |
307 (5.1) |
2.33 |
System default |
2400 (40) |
496 (8.2) |
3.78 |
— |
5400 (90) |
1114 (18.5) |
8.5 |
— |
13356 (222) |
2753 (45) |
21 |
— |
29789 (496) |
6000 (100) |
46.88 |
System maximum for one message |
Maximum size of a message that can be left for a subscriber
The following table shows some size examples (in seconds, minutes,
and Mbytes) of email, fax, and voice mail messages that can be left
for a subscriber, including the system default size and maximum
sizes. The message size in seconds and minutes depends on which
audio encoding format (GSM or G.711) is administered on your system.
You can define the maximum size of a message that can be left for
a subscriber by editing the subscriber's assigned class-of-service.
Message length, in seconds and (minutes) |
Message size, in Mbytes |
Notes |
GSM |
G.711 |
636 (10.5) |
131 (2.1) |
1 |
— |
900 (15) |
186 (3.1) |
1.42 |
— |
1489 (24.81) |
307 (5.1) |
2.33 |
System default |
2400 (40) |
496 (8.2) |
3.78 |
— |
5400 (90) |
1114 (18.5) |
8.5 |
— |
13356 (222) |
2753 (45) |
21 |
— |
29789 (496) |
6000 (100) |
46.88 |
System maximum for one message |
LAN impact
Use the following table to estimate how
much of the LAN traffic on the system will be comprised of email
messages (including email with attached components). The voice size
depends on which audio encoding format (GSM or G.711) is administered
on your system
Component |
Size |
Voice |
60 seconds = 110 1-KB packets (GSM)
60 seconds = 658 1-KB packets (G.711) |
Fax |
3 pages = 240 1-KB packets |
Email |
5 KB = 5.5 1-KB packets |
Attachments, including email attachments |
around 150 KB (file size varies by type of file and contents) |
Subscriber planning
Use the information in the following table
to help prepare subscribers for Internet Messaging.
Task |
Description/Information |
Determine whether to allow messaging subscribers
to access messages in their mailbox with a POP3 or IMAP4 email
program. |
The messaging system can provide mailbox access
via POP3 or IMAP4 email clients similar to any email server,
but allowing this access presents certain security risks.
See Email (Internet Messaging) security issues
for more information. |
Notify subscribers about their messaging email
capabilities. |
After Internet Messaging is activated, administered,
and functioning properly on your S3400 system, notify your
subscribers of their email address and that they can set up
email client programs, such as Outlook 2000 and Outlook Express,
to access voice and email messages located on the S3400. See
Notifying subscribers of email capability and
setup. |
Describe the differences between using the messaging
server and using email client applications, such as Outlook
2000 and Outlook Express. |
Describe the following differences to subscribers:
- The messaging server messages expire within a time period
determined by the subscriber's class-of-service mailbox
settings. Subscribers need to understand this difference
because email accounts do not usually behave this way.
- When using a email client application, "reply"
is always enabled even when it will not work and is not
an option from the telephone user interface (TUI), for example,
for call answer messages from non-subscribers.
- When using the TUI to address a message, you cannot use
the Bcc feature. The Bcc feature allows you to type in the
address of people who you want to receive the message while
their names are hidden from other recipients of the message.
- When using an email client application, all messages are
displayed in a single inbox folder regardless of message
type (voice, fax, or email).
- There is no indication that your messaging system mailbox
is full when using an email client application.
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