Patent ID: 8396930

Claim:
A method for facilitating creating one or more calendar entries in one or more client devices, the method comprising: receiving, using a first communication server device, an iTIP (iCalendar Transport-Independent interoperability Protocol) message from a first client device, the first client device being associated with a first user, the first client device having a first calendar application, the iTIP message being addressed to at least a second user, the second user being associated with a second client device, the second client device having a second calendar application; generating, using the first communication server device, an iMIP (iCalendar Message-Based Interoperability Protocol) message using the iTIP message; providing at least one of a copy of the iTIP message and a copy of the iMIP message to a least one of the second client device and a second communication server device connected to the second client device for enabling the second calendar application to generate a calendar entry in the second client device, wherein the first communication server device transmits the copy of the iTIP message to deliver information in the iTIP message received from the first client device to a first destination client device and wherein the first communication server device transmits a copy of the iMIP message to deliver the information in the iTIP message received from the first client device to a second destination client device, whether the copy of the iTIP message or the iMIP message is transmitted by the first communication server device is determined by the first communication server device; generating a first-user identifier for the first user using an email address of the first user; and generating the first-user identifier further using an attached phrase, the first-user identifier including at least the email address of the first user and the attached phrase; and providing the first-user identifier to the first client device for the first client device to include the first-user identifier in the iTIP message.