The default CRS prompts are not text-to-speech. They are definitely recorded by live human voice talent, and I believe they're recorded by the "Active Voice lady" (no idea what her real name is) who recorded all the messages for the old Active Voice voicemail systems, which subsequently became Cisco Unity. I talked to our local channel rep about this once, and he told me that it's possible to contract that same voice talent through Cisco if you want your custom prompts to exactly match the provided system prompts.
There are various things you can do to get better results from Nuance. You should try to spell things phonetically, the way you want them to sound, if Nuance is mispronouncing words. IPCC Express 3.1(2) ships with the newer Nuance Vocalizer 3.0, which may help if you can upgrade.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...