Acme Packet, Inc.

Kenneth Kuenzel

Kurt R Bertone

Patrick John MeLampy

Robert F Penfield

Patrick Timmons

Hadriel S Kaplan

Peter Commerford

David Gray

Ryan Koss

Mariana Benitez Pelaez

Alexander R McKinney

Patric Timmons

Systems and methods of establishing IP telephony sessions between enterprises are disclosed. A first enterprise requests an association with a second enterprise. Both enterprises and the second enterprise belong to the same federation. The association request is accepted, to establish an association between the first and second enterprises. In response to the acceptance, a direct routed path is established between the first enterprise and the second enterprise. One of the associated enterprises requests activation of an IP telephony service. If the request to activate references the association, an IP telephony session is established using the direct routed path.

Dynamic federations for establishing IP telephony sessions between enterprises

Methods for use in operation with a signaling path between given entities are disclosed. One such method includes: deriving, from signaling messages between the given entities, a negotiated set of attributes of an expected media session between the given entities; inferring, from the signaling messages and from semantics of another protocol underlying a session initial protocol, an inferred set of one or more non-negotiated attributes of the expected media session; during an actual media session negotiated by the given entities, determining whether the negotiated set and the inferred set of one or more non-negotiated attributes correspond to given attributes of the actual media session; and taking an administratively-defined action if the negotiated set and the inferred set of one or more non-negotiated attributes do not correspond to given attributes of the actual media session.

Method, system and architecture for validating media sessions in networks that use communication protocols with distinct signaling and media channels

A media control system (MCS) enforces media control policies on systems that conform to the relevant protocol specifications (such as SIP and SDP), for example, by interpreting and potentially modifying or destroying the SDP offers embedded in the SIP signaling messages that traverse it. This enables the MCS to exercise control over SIP-associated media sessions without necessarily inserting itself into the media streams themselves. The MCS can enforce media control policies that are based either directly on information that is explicitly contained in SDP message bodies or on secondary information that can be derived from information that is contained in the SDP messages.

Method and system for controlling media sessions in networks that use communication protocols with distinct signaling and media channels

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Sudbury, MA, United States of America

Kenneth Kuenzel