Patent No. EP2387862 (titled "System And Method For Determining Establishment Causes") was filed by Blackberry on Jan 15, 2010. The application was issued on Mar 13, 2019.
Method for enabling circuit-switched fallback in EPS-enabled devices by mapping CS fallback procedures to EPS establishment causes, including a strict mapping between CS fallback and EPS EC, using the service type of the EXTENDED SERVICE REQUEST message, and utilizing spare ECs in the EPS communication procedure.
Latest UPC cases involving this patent.

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents