Cisco Systems - OL-9420-01

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Contents

APPENDIX B Case Study Troubleshooting Cisco Unified IP Phone Calls This appendix contains two case studies Troubleshooting Intracluster Cisco Unified IP Phone Calls Troubleshooting Intercluster Cisco Unified IP Phone Calls Troubleshooting Intracluster Cisco Unified IP Phone Calls The case study in this section discusses in detail the call flow between two Cisco Unified IP Phones within a cluster called an intracluster call This case study also focuses on Cisco Unified CallManager and Cisco Unified IP Phone initialization registration and keepalive processes A detailed explanation of an intracluster call flow follows the discussion The explanation of the processes are explained using the trace utilities and tools discussed in Chapter 2 Troubles ...