Reference Design Configuration Limits
![]() Note |
The first four chapters of this book are for anyone who wants to get familiar with the contact center enterprise solutions:
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The following tables list key configuration limits for Contact Center Enterprise Reference Designs solutions.
Some of these limits are interdependent and dynamically change depending on the elements in your solution. For example, the number of skills per agent affects the maximum number of agents.
Limits that are listed as "per PG" always refer to a redundant pair of PGs.
![]() Important |
Your contact center enterprise solution can only use the new higher configuration limits with the standard three coresident PG layout. |
Agent Limits
![]() Note |
The figures in the Contact Director column refer to what are configured on the Contact Director. The figures do not include what is configured on the target systems to which the Contact Director connects. |
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Active Agents1 |
2000 |
4000 |
12,000 |
24,000 |
24,000 (cumulative on 3 target systems) |
Active Agents on each Unified CM cluster |
2000 |
4000 |
8000 |
8000 |
NA |
Configured Agents |
12,000 |
24,000 |
72,000 |
72,000 |
NA |
Configured Agents per PG |
12000 |
12000 |
12000 |
12000 |
NA |
Agents with TraceON enabled |
100 |
100 |
400 |
400 |
NA |
Agent Desk Settings |
2000 |
4000 |
12,000 |
12,000 |
NA |
2000 with nailed-up connections Or 1500 with call-by-call connections |
2000 with nailed-up connections Or 1500 with call-by-call connections |
2000 with nailed-up connections Or 1500 with call-by-call connections |
2000 with nailed-up connections Or 1500 with call-by-call connections |
NA |
|
Active ECE Multimedia Agents |
15004 |
40005 |
12,0006 |
24,0007 |
NA |
Agents per team |
50 |
50 |
50 |
50 |
NA |
Teams to which an agent can belong |
1 |
1 |
1 |
1 |
NA |
Skills per agent |
15 Refer to the section on dynamic sizing for details. |
15 Refer to the section on dynamic sizing for details. |
15 Refer to the section on dynamic sizing for details. |
10 Refer to the section on dynamic sizing for details. |
NA |
Number of agents in a skill group |
12,000 |
24,000 |
72,000 |
72,000 |
NA |
Attributes per agent |
50 |
50 |
50 |
50 |
NA |
Supervisor and Reporting User Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
Unified CCE 24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Active Supervisors8 |
200 |
400 |
1200 |
24009 |
NA |
Configured Supervisors |
1200 |
2400 |
7200 |
7200 |
NA |
Active teams |
200 |
400 |
1200 |
2400 |
NA |
Configured teams |
1200 |
2400 |
7200 |
7200 |
NA |
Supervisors per Team |
20 |
20 |
20 |
20 |
NA |
Teams per supervisor |
20 |
20 |
20 |
20 |
NA |
Agents per supervisor |
1000 |
1000 |
1000 |
1000 |
NA |
Active Cisco Unified Intelligence Center Reporting users |
200 |
400 |
120010 |
120011 |
NA |
Configured Cisco Unified Intelligence Center Reporting users |
1200 |
2400 |
7200 |
7200 |
NA |
Reporting users per CUIC node |
100 |
200 |
200 |
200 |
NA |
Access Control Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Active Administrators per distributor12 |
50 |
50 |
50 |
50 |
50 |
Configured Web Administrators |
100 |
100 |
100 |
100 |
NA |
Roles—Packaged CCE only |
30 |
30 |
30 |
NA |
NA |
Departments—Packaged CCE only |
200 |
20013 |
200 |
NA |
NA |
Department per Administrator—Packaged CCE only |
10 |
10 |
10 |
NA |
NA |
Machines in inventory |
1000 |
1000 |
1000 |
1000 |
NA |
Outbound Campaign Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Outbound dialer per system |
1 per Agent PG |
1 per Agent PG |
1 per Agent PG |
1 per Agent PG |
NA |
Outbound dialer maximum calls per second |
60 |
120 |
240 |
240 |
NA |
Outbound dialer maximum calls per second per dialer14 |
60 |
60 |
60 |
60 |
NA |
Outbound dialer maximum ports on each SIP dialer |
3000 |
3000 |
3000 |
3000 |
NA |
Outbound dialer maximum ports on each system (total) |
3000 |
6000 |
12000 |
12000 |
NA |
Number of Preview Campaigns per System |
1500 campaigns Preview and Direct Preview modes support up to 750 campaign skill groups on a Medium PG VM and 1500 campaign skill groups on a Large PG VM. |
1500 campaigns Preview and Direct Preview modes support up to 750 campaign skill groups on a Medium PG VM and 1500 campaign skill groups on a Large PG VM. |
1500 campaigns Preview and Direct Preview modes support up to 750 campaign skill groups on a Medium PG VM and 1500 campaign skill groups on a Large PG VM. |
1500 campaigns Preview and Direct Preview modes support up to 750 campaign skill groups on a Medium PG VM and 1500 campaign skill groups on a Large PG VM. |
NA |
Number of Predictive Campaigns per system (Agent or VRU based) |
375 |
750 |
1500 |
1500 |
|
Campaign skill groups per Campaign |
20 |
20 |
20 |
20 |
NA |
Predictive Campaign Skill Groups per Peripheral |
375 |
375 |
375 |
375 |
NA |
Maximum Outbound Skills per Agent |
5 |
5 |
5 |
5 |
NA |
Do Not Call Records per Import |
1,000,000 |
20,000,000 |
60,000,000 |
60,000,000 |
NA |
Precision Queue and Skill Groups Limits
![]() Note |
Each Precision Queue has an associated Skill Group. Each Precision Queue effectively has a weight of two Skill Groups. |
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Skill Groups per System |
16,000 15 |
16,000 |
27,000 |
48,000 |
54,000 |
Enterprise Skill Groups |
4000 |
4000 |
4000 |
4000 |
4000 |
Maximum combined configured Skill Groups and Precision Queues per peripheral |
4000 |
4000 |
4000 |
4000 |
NA |
Configured Precision Queues per system |
4000 16 |
4000 17 |
The smaller of: 4000 Or 27,000 divided by the number of agent peripherals |
The smaller of: 4000 Or 48,000 divided by the number of agent peripherals |
8000 of the maximum 54,000 queues |
Precision Queue steps |
10,000 |
10,000 |
10,000 |
10,000 |
NA |
Precision Queue term per Precision Queue |
10 |
10 |
10 |
10 |
NA |
Precision steps per Precision Queue |
10 |
10 |
10 |
10 |
NA |
Unique attributes per Precision Queue |
10 |
10 |
10 |
10 |
NA |
Max Unique Skills per Team |
50 |
50 |
50 |
50 |
NA |
Configured labels |
100,000 |
100,000 |
160,000 |
160,000 |
160,000 |
Precision Routing Attributes on each system |
10,000 |
10,000 |
10,000 |
10,000 |
NA |
Precision Routing Attributes for each Agent |
50 |
50 |
50 |
50 |
NA |
Skill Group statistics refresh rate |
10 seconds (default) |
10 seconds (default) |
10 seconds (default) |
10 seconds (default) |
NA |
Skill Groups per PG |
4000 |
4000 |
4000 |
4000 |
NA |
Queues18 per Contact Sharing Group |
NA |
NA |
NA |
NA |
100 |
Contact Sharing Rules |
NA |
NA |
NA |
NA |
100 |
Contact Sharing Groups |
NA |
NA |
NA |
NA |
1000 |
Task Routing Limits
Resource |
2000 Agent Reference Design |
4000 Agent Reference Design |
12000 Agent Reference Design |
24000 Agent Reference Design |
Contact Director Reference Design |
---|---|---|---|---|---|
Maximum active agents assigned to tasks per system |
2000 |
2000 |
2000 |
2000 |
NA |
Maximum reserved and active tasks per agent19 |
15 |
15 |
15 |
15 |
NA |
Maximum incoming tasks/sec across all MRDs20 |
5 |
5 |
5 |
5 |
NA |
Task Routing API request/hr through Customer Collaboration Platform |
15,000 |
15,000 |
15,000 |
15,000 |
NA |
Dialed Number Limits
![]() Note |
In the Global topology, each remote site can support the full limit of Dialed Numbers as mentioned in the table. |
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Dialed Numbers on each CVP peripheral (External Voice and Post Call Survey) 21 |
2000 |
4000 |
12,000 |
12,000 |
12,000 |
Dialed Number on each Unified CM peripheral (Internal Voice) |
2000 |
2000 |
2000 |
2000 |
NA |
Dialed Number on each MR peripheral (Multichannel) |
1000 |
1000 |
1000 |
1000 |
NA |
Dialed Number on each Unified CM peripheral (Outbound Voice) |
1000 |
1000 |
1000 |
1000 |
NA |
System Load Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
3000 |
6000 |
18,000 |
36,000 |
36,000 |
|
Maximum VRU Ports with Added PGs24 |
6000 |
12,000 |
36,000 |
48,000 |
72,000 |
Maximum Inbound Calls per Second (CPS) |
15 |
30 |
90 |
90 |
300, of which Contact Sharing can handle 120 and the remainder is for self-service and line-of-business direct routing. |
Congestion Control CPS25 |
18 |
35 |
105 |
105 |
300 |
Maximum Inbound CPS per VRU PG26 |
15 |
15 |
15 |
15 |
NA |
Maximum VRU PIM per VRU PG |
2 |
2 |
2 |
2 |
NA |
Dynamic Reskilling (operations/hr.) |
7200 |
7200 |
7200 |
7200 |
NA |
Maximum Queued Calls and Tasks |
15,000 |
15,000 |
15,000 |
15,000 27 |
15,000 |
Media Routing Domains per system |
20 |
20 |
20 |
20 |
NA |
Agent Callback requests through Customer Collaboration Platform(requests/hr.) |
1000 |
1000 |
1000 |
1000 |
NA |
ECE Email or Chat requests per hour for 400 agent deployment |
6 per agent |
6 per agent |
6 per agent |
6 per agent |
NA |
ECE Email or Chat requests per hour for 1500 agent deployment28 |
6 per agent |
6 per agent |
6 per agent |
6 per agent |
NA |
Incoming Messages per Second for CVP Reporting Server |
420 |
420 |
420 |
420 |
420 |
Reports per user For more details, see Resource Requirements for Reporting |
2 Live Data reports 2 AW-RealTime reports 2 historical reports |
2 Live Data reports 2 AW-RealTime reports 2 historical reports |
2 Live Data reports 2 AW-RealTime reports 2 historical reports |
2 Live Data reports 2 AW-RealTime reports 2 historical reports |
NA |
Maximum rows per report29 |
3000 for real-time 8000 for historical |
3000 for real-time 8000 for historical |
3000 for real-time 8000 for historical |
3000 for real-time 8000 for historical |
NA |
Configured Business Hour Objects30 |
1000 |
1000 |
1000 |
1000 |
1000 |
Configured Schedule Objects per Business Hours Object31 |
50 |
50 |
50 |
50 |
50 |
Call Variable Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Persistent Enabled Expanded Call Variables (Default)32 |
5 |
5 |
5 |
5 |
5 |
Persistent Enabled Expanded Call Variable Arrays |
0 |
0 |
0 |
0 |
0 |
Maximum Contents per ECC (Expanded Call Context) Variable (bytes) |
210 |
210 |
210 |
210 |
210 |
Maximum Total ECC Contents Size per ECC Payload (bytes) |
2000 |
2000 |
2000 |
2000 |
2000 |
Maximum ECC Variable Name (bytes without null character) |
32 |
32 |
32 |
32 |
32 |
Maximum Total Contents and Name Size for ECC Variables per ECC Payload (bytes) |
2500 |
2500 |
2500 |
2500 |
2500 |
Maximum ECC Variables Contents per Call (bytes) |
6000 |
6000 |
6000 |
6000 |
6000 |
Maximum System-wide ECC Variable Contents (bytes)33 |
90,000,000 |
90,000,000 |
90,000,000 |
90,000,000 |
NA |
Number of Peripheral Variables |
10 |
10 |
10 |
10 |
10 |
Call Context for Peripheral Variables 1-10 (bytes) |
40 |
40 |
40 |
40 |
40 |
Other Limits
Resource |
2000 Agent Reference Design Model |
4000 Agent Reference Design Model |
12000 Agent Reference Design Model |
24000 Agent Reference Design Model |
Contact Director Reference Design Model |
---|---|---|---|---|---|
Maximum Agent PGs with Live Data, Precision Queueing, or Single Sign-On enabled34 |
435 |
4 36 |
12 24 (when using the Extra Large Live Data OVA) |
24 |
50 |
Maximum PGs 37 |
30 |
100 |
150 |
150 |
NA |
Maximum Agent PGs on each VM |
1 |
1 |
1 |
1 |
NA |
Maximum Cisco Finesse server pairs per PG pair |
1 |
1 |
1 |
1 |
NA |
MR PIMs on each MR PG |
4 |
4 |
4 |
4 |
NA |
Custom Application Gateway |
20 |
20 |
20 |
20 |
20 per enterprise system |
Bucket Intervals |
2000 |
4000 |
12,000 |
12,000 |
NA |
Configured Call Types |
4000 |
8000 |
15,000 |
15,000 |
15,000 |
Call Type Skill Group per Interval38 |
70,000 |
70,000 |
70,000 |
70,000 |
NA |
Active Routing Scripts |
1000 |
2000 |
6000 |
6000 |
6000 |
Configured Routing Scripts |
2000 |
4000 |
12,000 |
12,000 |
12,000 |
Network VRU Scripts |
2000 |
4000 |
12,000 |
12,000 |
12,000 |
System-wide Maximum Configured Reason Codes and Labels |
2800, plus 21 system-defined |
3800, plus 21 system-defined |
7800, plus 21 system-defined |
7800, plus 21 system-defined |
NA |
Not-ready Reason Codes |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
NA |
Sign-out Reason Codes |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
100 global codes 100 associated reason codes for each team |
NA |
Wrap-up Reason labels39 |
100 global labels 1500 team labels |
100 global labels 1500 team labels |
100 global labels 1500 team labels |
100 global labels 1500 team labels |
NA |
Administration Bulk Jobs40 |
200 |
200 |
200 |
200 |
NA |
CTI AllEventClients41 |
7/Medium PG 20/Large PG42 |
7/Medium PG 20/Large PG 43 |
7/Medium PG 20/Large PG 44 |
7/Medium PG 20/Large PG |
NA |
Real-Time Only Distributors (for configuration only) |
4 (2 on each side) |
4 (2 on each side) |
10 (5 on each side) |
10 (5 on each side) |
10 (5 on each side) |
Agent Targeting Rule (ATR) |
1000 |
1000 |
1000 |
1000 |
NA |