Troubleshooting Guide

8-68
Cisco Unified Contact Center Express Servicing and Troubleshooting Guide, Release 7.0(1)
Chapter 8 Troubleshooting Tips
Text-to-Speech Problems
• TTS Prompt does not play, page 8-68
• TTS prompt is not recognizable, page 8-69
• MRCP TTS subsystem is out of service, page 8-69
• Long TTS prompts consume significant memory on Cisco Unified CCX Server, page 8-69
• Non-UTF-8 characters needed for some languages, page 8-70
• A .wav file prompt playback is garbled when played by a TTS server, page 8-70
• Changes, additions, or deletions to MRCP TTS Providers, MRCP Servers, locales, or genders do not
take effect, page 8-71
Provider becomes IN_SERVICE immediately
Symptom When creating as ASR/TTS provider, its status becomes IN_SERVICE immediately. This
happens even before creating any servers for it.
Error Message The ASR/TTS provider status incorrectly shows IN_SERVICE.
Possible Cause After deleting a provider and all the servers along with it, if a new provider is created, it
continues to use the previous configuration and does not get refreshed.
Recommended Action Click Refresh or Refresh All for that provider. This will cause the status of the
provider to go OUT_OF_SERVICE as expected.
TTS Prompt does not play
Symptom Callers do not hear a TTS prompt when a TTS prompt is expected.
Error Message None.
Possible Cause The cause of the problem might be one of the following:
• The language specified in the Override Language field in the TTS Prompt step is not available.
• The text referenced in the Text Input expression is larger than 20 KB.
• There are not enough MRCP TTS licenses for the MRCP TTS Provider that is being used. Licensing
can be implemented in different ways by different MRCP TTS vendors. It may happen that
depending on the licensing scheme of the vendor there may not be enough MRCP TTS licenses
configured for the language being used.
• When using multiple TTS providers, each with a different set of supported languages, the
appropriate TTS provider (the one that supports the desired language) might not get used. This might
be because the provider is not selected as the Default TTS provider and therefore some other
provider might get used.
Recommended Action Depending upon the cause, do one of the following:
• If the language specified is not available, from the Cisco Unified CCX Administration web page,
choose Subsystems > MRCP TTS and check whether the MRCP TTS server for the Override
Language is configured. If it is not, configure a new MRCP TTS server with the desired language
and then reload the corresponding MRCP Provider.
• Text larger than 20 KB is not allowed. Make sure that you are using less than 20 KB of text.