Patent ID: 8386250

Claim:
A system comprising: one or more computers; and a computer-readable medium coupled to the one or more computers having instructions stored thereon which, when executed by the one or more computers, cause the one or more computers to perform operations comprising: receiving an audio signal, generating, for each of two or more items of contact information, an affinity score based on a frequency with which a user has previously communicated with a contact associated with the item of contact information, and further based on a recency of one or more past interactions between the user and the contact associated with the item of contact information, wherein generating the affinity score includes associating a first weight value to an electronic message in which the contact information is included in a primary recipient field, and a second, different weight value to an electronic message in which the contact information is included in a carbon copy recipient field, inferring, for each of the items of contact information, a probability that the user intends to initiate a communication using the item of contact information based on the affinity score generated for the item of contact information, generating a communication initiation grammar that includes one or more transitions associated with each of the items of contact information, wherein, for each of the items of contact information, the one or more transitions associated with the item of contact information are weighted according to the probability inferred for the item of contact information, performing speech recognition on the audio signal using the communication initiation grammar, to select a particular item of contact information, and initiating the communication using the particular item of contact information.