1. A method for recognizing a speech, comprising: receiving, by a media resource processing device, an H.248 message carrying a speech recognition instruction and a related parameter sent by a media resource control device, wherein the related parameter comprises a recognition grammar parameter for the speech, the recognition grammar parameter for the speech is a recognition grammar for a common speech; performing, by the media resource processing device, speech recognition according to the speech recognition instruction and the related parameter; and reporting a recognition result to the media resource control device, the method further comprise: extracting, by the media resource processing device, a text string and performing the speech recognition after receiving the recognition grammar parameter, wherein a specific character string is embedded into the recognition grammar parameter.
1. A method for recognizing a speech, comprising: receiving, by a media resource processing device, an H.248 message carrying a speech recognition instruction and a related parameter sent by a media resource control device, wherein the related parameter comprises a recognition grammar parameter for the speech, the recognition grammar parameter for the speech is a recognition grammar for a common speech; performing, by the media resource processing device, speech recognition according to the speech recognition instruction and the related parameter; and reporting a recognition result to the media resource control device, the method further comprise: extracting, by the media resource processing device, a text string and performing the speech recognition after receiving the recognition grammar parameter, wherein a specific character string is embedded into the recognition grammar parameter. 2. The method according to claim 1 , wherein when the recognition grammar for the speech is prestored on the media resource processing device or an external server, the recognition grammar parameter is an ID and storage location information of a recognition grammar file, and the media resource processing device reads and caches the recognition grammar file according to the storage location information and performs the speech recognition according to the recognition grammar file which is read.