Patent ID: 8774751

Claim:
A communication method, comprising: receiving a human-readable address from a user to a presence agent serving the user, the human-readable address being a street address; receiving, by a presence server, a publication of presence information associated with the user, the presence information comprising the human-readable address for the user; receiving, by a multimedia session processing server, a request for establishing an emergency session from the user; routing the emergency session to a public safety answering point node by the multimedia session processing server; receiving, by the presence server, a subscription carried in a session initiation protocol message for at least part of the presence information from the public safety answering point node, the at least part of the presence information comprising the human-readable address for the user; determining the public safety answering point node as a source of the subscription; authorizing the subscription in response to the determination; and providing, by the presence server, the at least part of the presence information to the public safety answering point node.