Facilitating early media in a communications system
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorChrister Holmberg
Life of this patent
Estimating the term…
Abstract
A method of sending information from a Session Initiation Protocol intermediate node to a first Session Initiation Protocol terminal. The method comprises, upon receipt of a session initiation request at the Session Initiation Protocol intermediate node, establishing a first Session Initiation Protocol dialog between the Session Initiation Protocol intermediate node and the first Session Initiation Protocol terminal, sending information over said first dialog, forwarding said request from the Session Initiation Protocol intermediate node to a second, destination Session Initiation Protocol terminal, before, during, or after establishment of said first dialog, and establishing a second Session Initiation Protocol dialog, between the first and second Session Initiation Protocol terminals.
Claims8
A Session Initiation Protocol intermediate node arranged to send information to a first Session Initiation Protocol terminal, the intermediate node comprising:
- a micro-processor;
- and
- a memory that stores processor-executable instructions wherein the micro-processor interfaces with the memory and executes the processor-executable instructions to perform the following operations:
- upon receipt of a session initiation request at the Session Initiation Protocol intermediate node, establishing a first Session Initiation Protocol dialog between the Session Initiation Protocol intermediate node and the first Session Initiation Protocol terminal;
- sending information from the Session Initiation Protocol intermediate node to the first Session Protocol terminal over said first dialog;
- and
- establishing a second Session Initiation Protocol dialog, between the first and a second Session Initiation Protocol terminals before, during, or after establishment of said first dialog,
- wherein the first and second dialogs are distinguished by different To header tag parameters in the session initiation responses.
Dependencies are inferred from the claim text.