Multimedia Group Communication: Push-to-Talk Over Cellular, by Andrew Rebeiro-Hargrave

By Andrew Rebeiro-Hargrave

Crew verbal exchange applied sciences let clients to shape forms of cellular teams and to have interaction in actual time with the individuals of those teams.

This ebook offers an in-depth review of Multimedia staff Communications within the cellular domain.  It specifies multimedia staff verbal exchange options, introduces more than a few functions, and proposes an evolution direction. The options disguise the "walkie-talkie" voice over IP carrier, XML record administration, and Presence understanding applied sciences. The purposes part embraces consultation keep watch over for closed expert teams and for open patron teams. The evolution direction contains interesting advancements corresponding to ‘infotainment’ and communique with non-human team members. 

Key gains:

  • Easy to appreciate rationalization of the rush to speak over mobile (PoC) provider, as laid out in the Open cellular Alliance (OMA)
  • Provides technical description of XML record administration and straightforward Presence prone
  • Gives examples on tips to installation staff verbal exchange companies over 3GPP IP Multimedia Subsystem (IMS) and among IMS domain names
  • Describes cutting edge use circumstances for multimedia crew verbal exchange via integration with value-added companies and during the following iteration of OMA enablers

Multimedia crew Communications is the 1st exploration to the sphere of one-to-many connectivity paradigm. It presents crucial info on staff verbal exchange for engineers, programmers and company managers operating within the cellular area, and also will be precious to enterprise improvement planners and technically conscious users.Content:
Chapter 1 workforce communique recommendations (pages 1–22):
Chapter 2 OMA Push?to?Talk structure (pages 23–57):
Chapter three The OMA XML record administration (XDM) Enabler (pages 59–103):
Chapter four The OMA Presence carrier (pages 105–137):
Chapter five Deploying workforce communique with IMS (pages 139–188):
Chapter 6 Examples of team conversation periods (pages 189–222):
Chapter 7 worth extra PoC providers (pages 223–238):
Chapter eight OMA PoC2 staff communique ideas (pages 239–256):
Chapter nine Multimedia team communique Evolution: PoC2, XDM2, Presence 2 and straightforward IM (pages 257–267):

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Extra info for Multimedia Group Communication: Push-to-Talk Over Cellular, Presence and List Management Concepts and Applications

Example text

SUBSCRIBE places a Presence subscription. While the subscription is active, the Presence service delivers notifications (SIP NOTIFY) to all subscribed watchers, to inform about changes in the status of each Presentity. 7 XML Document Management Concepts Concept OMA Definition URI List Group Management A collection of URI’s put together for convenience The action of creation, modification or deletion of XML documents that define groups. Groups can in turn be used by SIP services such as PoC or Presence.

This can be the Nickname that is displayed to other users in the channel A PoC Address identifies a PoC user who has requested privacy A feature in which a PoC user sends a SIP based instant message to a PoC user requesting a 1-1 PoC session. Call back request tone – define the ringing tone for call back requests 16 Multimedia Group Communication The AMR codec modes are negotiated at the start of the session. They are controlled in the server where the session is originated [2]. 1. A PoC client sends a list of the codec modes that it supports to the PoC server; 2.

1 is the Presence feature. The Presence service provides PoC users with the ability of determining whether their intended contacts are available for communication prior to establishing a PoC session. Presence is useful, therefore, to let users decide the most appropriate – and less intrusive – means of communication at any given time. Internet users are becoming increasingly familiar with Presence solutions. Effectively, the Presence user experience is already available in Internet communication tools that support services such as Instant Messaging or voice communications.

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