System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure CTI Applications

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/15/systemConfig/cucm_b_system-configuration-guide-15/cucm_b_system-configuration-guide-14_chapter_011001.html

Published

2026-09-22

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• The first task in the Unified CM 15 CTI application task flow is activating the Cisco CTIManager service in Cisco Unified Serviceability. in context
• In Unified CM 15 the Standard CTI Allow Control of All Devices group lets an application control or monitor any CTI-controllable device in the system. in context
• When a CTI application fails, CTIManager closes the application and redirects unterminated calls at its CTI ports and route points to the configured call forward on failure (CFOF) number. in context
• The Unified CM 15 CTI chapter lists a Standard CTI Allow Call Monitoring group that allows an application to monitor calls. in context
• In Unified CM 15 the Standard CTI Allow Calling Number Modification group lets an application modify the calling party number. in context
• Application Heartbeat Minimum Interval and Application Heartbeat Maximum Interval are CTIManager service parameters listed in the Unified CM 15 CTI task flow. in context
• To support IPv6 addresses, CTI applications must use a JTAPI or TAPI client version that supports IPv6. in context
• The Unified CM 15 Maximum Devices Per Node service parameter sets the maximum number of devices all CTI applications together can open on any one CTIManager node. Its default is 800. in context
• The Unified CM 15 Maximum Devices Per Provider service parameter sets the maximum number of devices one CTI application can open. Its default is 2000. in context
• The Unified CM 15 CTI New Call Accept Timer sets how long a call is allowed to be answered. Its default value is 4, and the chapter does not print the unit. in context
• After a CTIManager failover, applications do not rehome to the primary CTIManager when it comes back into service. in context
• In Unified CM 15 the Standard CTI Allow Call Park Monitoring group lets an application receive notifications when calls are parked and unparked. in context
• In Unified CM 15 the Standard CTI Allow Call Recording group lets an application record calls. in context
• When a CTIManager fails, connected applications can recover the affected resources by reopening the devices on another CTIManager. Each application picks from the primary and backup CTIManagers set up in the application. in context
• When a Unified CM node fails, CTIManager recovers the affected CTI ports and route points by reopening them on another Unified CM node. in context
• A CTI route point is a virtual device that can receive multiple simultaneous calls for application-controlled redirection. in context
• Administrators set the number of simultaneous active calls on a CTI route point. The Unified CM 15 CTI chapter does not state a default or maximum for this setting. in context
• In Unified CM 15 the Standard CTI Secure Connection group requires the application to use a secure (TLS) CTI connection to Unified CM. in context
• The Unified CM 15 CTI chapter lists a Standard CTI Allow Reception of SRTP Key Material group, which lets an application receive the SRTP keys needed to decrypt encrypted media. in context
• In Unified CM 15 the Standard CTI Enabled access control group lets an application connect to Unified CM and use CTI functionality. The CTI task flow adds end users and application users to this group. in context

Cite this source record

APA

WarmTransfer. (2026, September 22). System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure CTI Applications. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-sysconfig-15-cti-applications

BibTeX

@misc{warmtransfer-cisco-cucm-sysconfig-15-cti-applications,
  title  = {System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure CTI Applications},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-sysconfig-15-cti-applications},
  note   = {Cisco Systems, accessed 2026-09-25}
}