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Other planning considerations
November 2004
Avaya Modular Messaging Concepts and
Planning Guide
13-11
! If an MAS is used to host the Offline Call Answer store, the MAS
must meet the criteria:
nHRS + (nHRS / nMAS) <_ 5,000 (GSM) or 1,000 (G.711)
! If a separate S3400 system is used to host the Offline Call
Answer store, the S3400 system must meet the criteria:
nHRS <_ 10,000 (GSM) or 2,000 (G.711)
Note: The maximum number of hours available on an MAS is
5,000 (GSM) or 1,000 (G.711). The maximum number of
hours available on a separate S3400 system not configured as
an MAS is 10,000 (GSM) or 2,000 (G.711).
An example Table 13-3 provides an example for calculating the requirements for
storing offline Call Answer messages.
Table 13-3. Server capacities and requirements for Offline Call Answer message storage
Input Values
Number of seats or mailboxes (M) 5,000
Average number of incoming Call Answer messages per seat in a
24-hour period (nCA)
5
Average length of messages, in seconds (L) 30
Number of MAS units in configuration (nMAS) 2
Number of hours of storage required (HRS) 24
Message encoding format GSM
Hours of storage
Hours of storage required per 24-hour period (24HRS) (M x nCA x L) / 3600 = 208
Total hours of storage for "n" hour periods (nHRS) 24HRS x HRS/24 = 208
On-board evaluation (located on one of the MAS units)
Total on-board hours (copy for all MAS units plus local MAS
copy)
nHRS + (nHRS/nMAS) = 313
On-board MAS is OK or not OK
Note: Maximum 5,000 GSM / 1,000 G.711
Is OK
Off-board evaluation (On separate server - Avaya S3400 Server)
Total off-board hours (copy of all MAS units) nHRS = 208