Methods and systems for facilitating transfer of sessions between user devices

摘要

Methods and systems for facilitating transfer of an active session from a first device to a second device associated with the same user. A network server is configured to enable the switching or swapping of an active session from one device to another device, where both devices are associated with a common user address. The switching or swapping is implemented with no or minimal effect on the active session or awareness of the remote party. The device switch may be performed in relation to any active session, including VoIP, video conferencing, or other media sessions.

主权项

1. A method of facilitating transfer of an existing session from a first user device to a second user device, the method comprising:
the existing session being established between the first user device and a remote party and the existing session including a first leg between the first user device and a server and a second leg between the server and the remote party, the server storing a first association between a user address and the first user device and a second association between the user address and the second user device, the user address comprising a Session Initiation Protocol (SIP) Uniform Resource Identifier (URI), the first user device having a first Globally Routable User Agent URI (GRUU) based on the SIP URI, and the second user device having a second GRUU based on the SIP URI; receiving, at the server, a session invitation message from the second user device containing a reference to the existing session with an instruction to replace the first user device; verifying from the stored first and second associations that the GRUU of the second user device is based on a same SIP URI as that included in the user address associated with the first user device, said verifying performed by the server without further communication with the remote party; accepting the session invitation message from the second user device to establish a new leg between the second user device and the server; joining the new leg with the second leg of the existing session to enable an exchange of media between the second user device and the remote party; and terminating the first leg of the existing session.