Enabling grammars in web page frames, including receiving, in a multimodal application on a multimodal device, a frameset document, where the frameset document includes markup defining web page frames; obtaining by the multimodal application content documents for display in each of the web page frames, where the content documents include navigable markup elements; generating by the multimodal application, for each navigable markup element in each content document, a segment of markup defining a speech recognition grammar, including inserting in each such grammar markup identifying content to be displayed when words in the grammar are matched and markup identifying a frame where the content is to be displayed; and enabling by the multimodal application all the generated grammars for speech recognition.