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For additional information, refer to these resources:
- Cisco, Inc., Cisco Collaboration System 12.x Solution Reference Network Designs (SRND), March 2018. https://www.cisco.com/c/en/us/td/doc.../collab12.html.
- Cisco, Inc. Administration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 12.0(1), April 2018. https://www.cisco.com/c/en/us/td/doc...uide-1201.html.
- Cisco, Inc., Cisco Unified Communications Manager Dial Plan Deployment Guide. https://www.cisco.com/c/en/us/td/doc.../DP_Intro.html.
- Cisco, Inc., Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.0(1). https://www.cisco.com/c/en/us/td/doc...uide-1201.html.