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Home > MSS Administration > Email (Internet Messaging) > Planning for Email (Internet Messaging)

Planning for Email (Internet Messaging)

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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