21. The improvement of claim 12 , wherein a voice command application executing on the second voice command platform incorporates the grammar information as a subsidiary root-level document and uses the subsidiary root level document in processing the call at the second voice command platform.
12. In a voice command platform system wherein the improvement comprising: a processor executing instructions for transferring a call from the voice command platform to a second voice command platform, wherein the instructions transmit, either directly or indirectly, grammar information from the voice command platform to the second voice-command platform for use by a voice command application executing in the second voice-command platform in processing the call, the grammar information comprising information as to allowed spoken utterances from a user in response to a prompt.