Avaya 11-300244 Manuel D’Utilisation
Other planning considerations
November 2004
Avaya Modular Messaging Concepts and
Planning Guide
13-15
!
The average number of Call Answer messages sent and received
received per day
received per day
!
The average duration of Call Answer messages
!
The average number of voice messages sent and received
received per day
received per day
!
The average duration of voice messages
!
The average number of fax messages sent and received per day
!
The average length and size of fax messages
!
The average retention period for storage of messages
!
The number of subscribers in the organization
!
Average retention period for storage of messages
An example of
e-mail server
storage capacity
calculation
e-mail server
storage capacity
calculation
To calculate the impact that voice messages will have on the current
e-mail store based on which encoding algorithm is being used, consider
the example shown in Table 13-5.
e-mail store based on which encoding algorithm is being used, consider
the example shown in Table 13-5.
Table 13-5. Storage capacity calculation example
Assumptions per subscriber
GSM
encoding
encoding
G.711
encoding
encoding
Voice and Call Answer messages
Total number of voice and Call
Answer messages sent and
received per day
Answer messages sent and
received per day
6
—
—
Average length, in seconds
40
—
—
Size in Kilobytes per second
(KBps)
(KBps)
—
1.58
7.81
Space required for storage of
new messages (MB)
new messages (MB)
—
0.370
1.830
Fax messages
Total number of fax messages
sent and received per day
sent and received per day
0.075
—
—
Average length of fax, in pages
3
—
—
Size in KB/page (subject to
coverage, quality, file format)
coverage, quality, file format)
80
—
—
Space required for storage of
new fax messages (MB)
new fax messages (MB)
—
0.018
0.018