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Avaya Call Management System Overview and Specification
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Capacity and scalability specifications
Last Updated : Jul 02, 2026 |
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Before installing CMS, review the server capacity requirements outlined in this section. You can also find general system capacity information for CMS.
CMS encrypts server/client connections, where the client is the CMS Supervisor PC or Web Client. When FIPS 140-2 encryption is enabled, it uses additional CPU and memory to support more complex ciphers. Therefore, the following CMS capacities are reduced by 10%:
-
Concurrent supervisor sessions
-
Reports for each supervisor session
-
Report elements
-
Average refresh rate (30 seconds), including a 10% reduction in the listed 3-second refresh rate capacities
Capacity requirements for new installations
Select the appropriate profile size for your deployment.
|
Parameter
|
Small
|
Medium
|
Large
|
|---|---|---|---|
|
Peak busy-hour call volume
|
30000
|
200000
|
400000
|
|
Concurrent CMS Supervisor sessions1
|
50
|
200
|
2999
|
|
Concurrent agents
|
500
|
5000
|
10000
|
|
Third-party software
|
3
|
3
|
3
|
|
Agent skill pairs
|
100000
|
200000
|
800000 2
|
|
Reports per CMS Supervisor session
|
3
|
5
|
10 3
|
|
Report elements 4
|
5
|
5
|
12
|
|
Percentage of supervisors that can run reports with a three-second refresh rate
|
10%
|
50%
|
100%
|
|
Active agent traces
|
250
|
1000
|
5000
|
|
Internal Call History (ICH) records - per 20 minutes
|
4000
|
4000
|
4000
|
|
External Call History (ECH) records - per 20 minutes
|
10000
|
60000
|
300000
|
-
You can view the total number of active CMS Supervisor client sessions using this value.
-
If your storage exceeds 800 GB, create additional disk volumes.
-
You can access up to three real-time reports and the specified amount of historical data.
-
To understand the different report elements, see Report elements.
System-wide capacities (specific to Avaya Aura® Call Center Elite)
|
CMS attribute
|
System wide capacity
|
Per ACD maximum capacity
|
|---|---|---|
|
Agent skill pair
|
800000
|
360000
|
|
Total VDNs
|
54000
|
30000
|
|
Total splits or skills
|
54000
|
8000
|
|
Total trunks
|
100000
|
30000
|
|
Total trunk groups
|
8000
|
2000
|
|
Total vectors
|
32000
|
8000
|
|
Total call work codes
|
4000
|
1999
|
|
Agent trace records (AAR)
|
5100000
|
5100000
|
Maximum values (specific to Avaya Aura® Call Center Elite)
|
Agent/skill pairs
|
300000
|
300000
|
400000
|
500000
|
800000
|
|---|---|---|---|---|---|
|
Interval length (minutes)
|
15
|
30
|
30
|
30
|
30
|
|
Interval data days saved
|
31
|
31
|
15
|
31
|
15
|
|
Daily data days saved
|
730
|
1825
|
1825
|
730
|
730
|
Note:
Daily, weekly, and monthly limits remain unaffected. However, when the capacity of agent skill pairs exceeds 2,00,000, there is an impact on the interval data storage.