Don,
In 2010 there was a Nuance patch for error.noresource coming from Cisco voice gateway (I'll add it here, but you'll have to change the file extension back to .zip to use it).
Don't know if it'll fix your issue or not.
# Installation instructions #----------------------------------------------------------------------- -----------------------------------------------------
1. Shutdown the Nuance Speech server
2. Make a back-up copy of mrcp1osrspeechrecog.dll and osrspeechrecog.dll files
3. Copy mrcp1osrspeechrecog.dll and osrspeechrecog.dll files to bin directory of the server by overwriting the original files.
4. Restart the server