Nokia Solutions and Networks Oy

Mavenir Systems, Inc.

Suprabhat Chatterjee

Peter Leis

Jiadong Shen

Martin Oettl

Alexander Milinski

Rick Bianconi

A method of call handling when multiple namespaces are present for a call of a priority or emergency call type initiated by a subscriber of a wireless network includes: obtaining, by an originating Proxy Call Session Control Function (P-CSCF), a predetermined precedence order for the multiple namespaces; retrieving, by the originating P-CSCF, each namespace and associated priority from the subscriber's Registration Context; inserting, by the originating P-CSCF, a SIP Resource-Priority header for each namespace and associated priority; and inserting, by the originating P-CSCF, an additional SIP Resource-Priority header with an additional specified namespace (Multiple Namespace Precedence Order (MNPO)) and priority value identifying the predetermined precedence order for the multiple namespaces. The originating P-CSCF uses the namespace with the highest precedence order to select the appropriate values to fill in Reservation-Priority Attribute-Value Pair (AVP) and Multimedia-priority services (MPS) Identifier AVP in Rx interface signaling to a Policy and Charging Rules Function (PCRF).

Multiple namespaces support in priority call in IMS network

It is provided a method, comprising monitoring, for each of plural attempts of a web identity to register for an internet protocol multimedia service, if the respective attempt is received; generating, for each of the plural attempts if the respective attempt is received, a respective private user identification based on the web identity and a respective distinguishing identifier, wherein probability that two of the private user identifications have a same value is less than a predefined limit; providing the respective private user identification in response to the respective attempt.

Multiple parallel WebRTC accesses to IMS

Growing community of inventors

Bengaluru, India

Suprabhat Chatterjee