Troubleshooting Guide

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Cisco Unified Contact Center Express Servicing and Troubleshooting Guide, Release 7.0(1)
Chapter 8 Troubleshooting Tips
Text-to-Speech Problems
• If necessary, obtain a license for additional MRCP TTS ports from the MRCP TTS vendor.
• If the default TTS provider is not being used, configure the Default TTS Provider field using Cisco
Unified CCX Administration. Go to System > System Parameters and select the desired TTS
provider. Or using the Cisco Unified CCX Editor, create TTS Prompt step, and explicitly specify the
desired TTS provider in the Overrride TTS Provider field. If using VXML scripts, specify the
desired TTS provider for Nuance Vocalizer 3.0, and configure it as follows:
• <property name="com.cisco.tts.provider" value="Nuance Vocalizer 3.0"/>
TTS prompt is not recognizable
Symptom A TTS Prompt cannot be recognized by callers.
Error Message None.
Possible Cause The language of the text does not match the Override Language in the TTS Prompt step.
For example, the text is in English, but the Override Language is Spanish.
Recommended Action In the appropriate TTS Prompt step, ensure that the Text Input matches the Override
Language Selection.
MRCP TTS subsystem is out of service
Symptom The Engine Status area in the Engine web page shows that the MRCP TTS Subsystem is out
of service.
Error Message None.
Possible Cause The cause could be one of the following:
• The MRCP Provider and Server are not configured from the MRCP TTS Configuration web page.
• The MRCP TTS Server(s) is down or unreachable.
Recommended Action Complete the following steps:
Step 1 Verify that MRCP Provider and Servers are configured through the MRCP TTS Configuration web page.
Step 2 Verify that the MRCP TTS servers are up and reachable.
Long TTS prompts consume significant memory on Cisco Unified CCX Server
Symptom Long TTS prompts consume significant memory on the Cisco Unified CCX Server.
Error Message None.
Possible Cause Long text files will increase memory usage on the Cisco Unified CCX Server. For
example, a 5 KB text file requires a 2.5 MB audio file. On a system with 40 TTS ports, this scenario can
consume approximately 120 MB of memory.
Recommended Action If you are using long text files, make sure to provision your system appropriately.