1. 1 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Unity Connection 2.0(1) Miu Architectural Overview TOI June 10, 2007 Mike Begeman mbegeman@cisco.com

2. 222 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Overview Design Changes New Feature Troubleshooting Tips

3. 333 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes Removal of Windows-specific components. No more TSP for SCCP call control!!! Miu is one monolithic shared library. Software Audio driver (CuMixer). New versions of Nuance Text-To-Speech (TTS) and Automatic Speech Recognition (ASR) engines. Voice ports no longer use dedicated threads, use thread pooling technique.

4. 444 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes, Old Architecture

5. 555 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes, New Architecture

6. 666 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes No more TSP!!! Monolithic Miu Design Previous versions, Unity and Unity Connection shared a common TSP and audio driver for SCCP. With CUC 2.0(1), TSP has been rolled into Miu. We now have separate protocol stacks between Unity and Unity Connection. Both products still support SCCP version 8. For SCCP Engineering Specials, requires new CsMiuSvr.so library (previously, released new TSP).

7. 777 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes New Audio driver, CuMixer replaces AvAudio.sys, Windows kernel-mode audio driver. Runs as a separate process, communicates with Miu via System V message queue (IPC). Runs in user-mode, shares same code base as MeetingPlace Express. see Mixer TOI for more details. Threading model change Previous versions, 4 threads per voice port. CUC2.0(1) uses a thread pool model.

8. 888 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Design Changes New versions of TTS and ASR Engines Linux versions of TTS and ASR. TTS no longer stand-alone exe; Statically linked to CuMixer. ASR Engine is separate process. Miu communicates via RTSP/MRCPv1 (same as previous versions).

9. 999 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID New Feature Not too much new feature added, but… Configurable QoS for call control and media. Part of D&I system initiatives. Volume control on message playback. Support for G.711A-law codec.

10. 10 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Troubleshooting Check Telephony Configuration tool. Port Monitor tool. Alarms. Miu traces.

11. 11 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Troubleshooting Check Telephony Configuration Task Run from any CUCA “Telephony Integration” page, “Related Links” drop down (upper right of page). Also runs automatically via CUCA “Task Management, Tools”. Checks for inconsistencies in telephony- related database settings.

12. 12 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Troubleshooting Port Monitor Can monitor Conversation state on the voice port. RTMT, Port Monitor tool. CUCA, under “Telephony Integration, Port, Port Status”. (only 1 port at a time).

13. 13 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Troubleshooting Alarms Direct mapping for CUC1.2 event log. RTMT, syslog. Important alarms include port lockups, broken UCM connection, software exceptions.

14. 14 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID Troubleshooting Traces, Miu Call Control and Media Turn on via “Trace, Macro Traces”. Call Control, for SIP systems and for SCCP systems. Media (Wave). Turns on both Miu and CuMixer traces. In general, turn on all of the above to troubleshoot call related issues. Digit traces. For security reasons, CUC blocks the logging of PIN digits by default. You can override this behavior via “Micro, MiuGeneral, All Digits” trace.

15. 15 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID References Miu FDS http://wwwin-eng.cisco.com/cgi- bin/edcs/edcs_info?EDCS-526458 Unity Connection Architecture Overview http://wwwin-eng.cisco.com/cgi- bin/edcs/edcs_info?EDCS-489819

16. 16 © 2003, Cisco Systems, Inc. All rights reserved. Proprietary and Confidential Presentation_ID 16 © 2001, Cisco Systems, Inc. All rights reserved. Presentation_ID