Abstract: A communication application configured to support a conversation among participants over a communication network. The communication application is configured to (i) support one or more media types within the context of the conversation, (ii) interleave the one or more media types in a time-indexed order within the context of the conversation, (iii) enable the participants to render the conversation including the interleaved one or more media types in either a real-time rendering mode or time-shifted rendering mode, and (iv) seamlessly transition the conversation between the two modes so that the conversation may take place substantially live when in the real-time rendering mode or asynchronously when in the time-shifted rendering mode.

Abstract: A network communication device located on a Push To Talk (PTT) communication network and configured to provide time-shifting capabilities to a user of a PTT communication device is disclosed. The network communication device includes a receiver configured to progressively receive time-based media. The network communication device also includes a time-shifting buffer for progressively storing the received time based media as the time-based media is received and a time-shifting buffer controller configured to control the rendering of the time-based media at the PTT device.

Abstract: A method for gracefully extending the range and/or capacity of voice communication systems is disclosed. The method involves the persistent storage of voice media on a communication device. When the usable bit rate on the network is poor and below that necessary for conducting a live conversation, voice media is transmitted and received by the communication device at the available usable bit rate on the network. Although latency may be introduced, the persistent storage of both transmitted and received media of a conversation provides the ability to extend the useful range of wireless networks beyond what is required for live conversations. In addition, the capacity and robustness in not being affected by external interferences for both wired and wireless communications is improved.

Abstract: A telecommunication and multimedia management apparatus and method that supports voice and other media communications and that enables users to: (i) participate in multiple conversation modes, including live phone calls, conference calls, instant voice messaging or tactical communications; (ii) review the messages of conversations in either a live mode or a time-shifted mode and to seamlessly transition back and forth between the two modes; (iii) participate in multiple conversations either concurrently or simultaneously; (iv) archive the messages of conversations for later review or processing; and (v) persistently store media either created or received on the communication devices of users. The latter feature enables users to generate or review media when either disconnected from the network or network conditions are poor and to optimize the delivery of media over the network based on network conditions and the intention of the users participating in conversations.

Abstract: A communication application configured to support a conversation among participants over a communication network. The communication application is configured to (i) support one or more media types within the context of the conversation, (ii) interleave the one or more media types in a time-indexed order within the context of the conversation, (iii) enable the participants to render the conversation including the interleaved one or more media types in either a real-time rendering mode or time-shifted rendering mode, and (iv) seamlessly transition the conversation between the two modes so that the conversation may take place substantially live when in the real-time rendering mode or asynchronously when in the time-shifted rendering mode.