Unified Communication Manager 7.1(2) CTI Scalability Improvements George Gary, Product Mgr. IP Communications July 2009

UC Application Enabled Improved CTI coverage Better CTI scalability for multi-line devices Better CTI scalability for shared line devices

Definition of terms Subscriber – a Unified CM cluster server running the CallManager and CTI Manager service for Cisco IP devices CTI enabled Device – a Cisco IP Phone or Virtual device (CTI port, RoutePoint). A list of CTI supported devices can be found: http://developer.cisco.com/web/jtapi/wikidocs CTI Provider – a single IP connection between the CTI application and the CTI Manager service running on a Subscriber Non-CTI enabled Device – a Cisco IP Phone not enabled, associated, or used with a CTI application

CTI Scalability Improvements (Per Server) Server Class Unified CM 7.0(1) or earlier Per Subscriber Unified CM 7.1(2) 1 Application per device Each device has 2 DNs or 3 shared lines 7825-H3/I3 800 CTI enabled devices, 200 non-CTI devices 1 CTI provider supports 800 devices 900 CTI enabled devices or 1,800 CTI-enabled lines (per Subscriber) whichever comes first 100 non-CTI devices 1 CTI provider supports 900 devices 7835-H2/I2 800 CTI enabled devices 1700 non-CTI devices 1,000 CTI enabled devices or 2,000 CTI-enabled lines (per Subscriber) whichever comes first 1500 non-CTI devices 1 CTI provider supports 1000 devices 7845-H2/I2 2500 CTI enabled devices 5000 non-CTI devices 1 CTI provider supports 2500 devices 3375 CTI-enabled devices or 6750 CTI-enabled lines (per Subscriber) whichever comes first 4125 non-CTI devices 1 CTI provider supports 3375 devices

CTI Scalability Improvements (Cluster Totals) Server Class Unified CM 7.0(1) or earlier Assumes a 4 Subscriber cluster Unified CM 7.1(2) 1 Application per device Each device has 2 DNs or 3 shared lines 7825-H3/I3 3200 CTI enabled devices, 800 non-CTI devices 3600 CTI enabled devices or 7200 CTI-enabled lines whichever comes first (evenly distributed across a 4 subscriber cluster) 400 non-CTI devices 7835-H2/I2 3200 CTI enabled devices 6800 non-CTI devices 4000 CTI enabled devices or 16,000 CTI-enabled lines whichever comes first (evenly distributed across a 4 subscriber cluster) 6000 non-CTI devices 7845-H2/I2 10,000 CTI enabled devices 20,000 non-CTI devices 13,500 CTI enabled devices or 27,000 CTI-enabled lines, whichever comes first (evenly distributed across a 4 subscriber cluster) 16,500 non-CTI devices

CTI support for Multiple Lines 100% improvement A single CTI resource can now support 2 CTI-enabled unique DNs (not shared) per device without requiring additional resources Previously 1 CTI resource was required per unique DN Device BHCA must not exceed 6 If device BHCA exceeds 6 or if the device is configured with 3 or more unique (not shared) CTI-enabled DNs, then additional CTI resources are required. Use the Unified Communication Sizing Tool to determine the CTI resources required: http://tools.cisco.com/cucst

CTI support for Shared Lines 200% improvement A single CTI resource can now support 3 CTI-enabled shared DNs per device without requiring additional resources Previously 1 CTI resource was required per shared DN Total Device BHCA across all lines on the device must not exceed 6 If the total device BHCA exceeds 6 or if the device is configured with 4 or more shared CTI-enabled DNs, then additional CTI resources are required. Use the Unified Communication Sizing Tool to determine the CTI resources required: http://tools.cisco.com/cucst

Comparison of CTI Improvements with Cisco Unified Personal Communicator Unified CM 7.0(1) or earlier Unified CM 7.1(2) and later 7825-H2/I2 – 3200 clients 7835-H1/I1 – 3200 clients 7845-H1/I1 – 10,000 clients 7825-H3/I3 – 3600 clients 7835-H2/I2 – 4000 clients 7845-H2/I2 – 13,500 clients Use the Unified Communication Sizing Tool to determine the CTI resources required: http://tools.cisco.com/cucst