Publication of Partial Presence Information

Lonnfors, Mikko; Niemi, Aki; Leppanen, Eva

doi:10.17487/rfc5264

Cited by 5 publications

(3 citation statements)

References 9 publications

(18 reference statements)

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“…When changing status, UE sends another request Publish, which will go the same way as the first one. The form of the messages is described in [16]. The message itself contains only the change of the status.…”

Section: Presence Architecturementioning

confidence: 99%

Presence Service in IMS

Petras

Baroňák

Chromy

2013

The Scientific World Journal

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This paper describes the presence service, which is located in the IP multimedia subsystem. This service allows making many applications for different groups of people. The paper describes differences between a network without the service and with the service. The biggest change is an increased number of transmitted messages. The presence uses some part of the IP multimedia subsystem control layer, which is shown in communication between the user and the server. The paper deals with the number of generated messages depending on the behaviour of the users. This is described by a mathematical model using discrete Markov chains.

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Section: Presence Architecturementioning

confidence: 99%

Presence Service in IMS

Petras

Baroňák

Chromy

2013

The Scientific World Journal

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“…According to the presence model, all presentities publish presence or context information to a presence service, which effectively is a push mechanism. Due to the large variety of PUAs expected to be on end-user devices, PUAs should follow standardization and send SIP PUBLISH messages [24,25] to a single entity. Hence, PUAs cannot send context information to multiple context mediators directly.…”

Section: Presence User Agentmentioning

confidence: 99%

“…In compliance with the presence model, documents based on PIDF [35] can be used as the body of notification messages [30] as well as publish messages [25]. PIDF is a rather basic presence data format with which basic status information (open/closed) and contact information (<contact>sip:user@example.com </contact>) can be defined.…”

Section: Context Information Formatmentioning

confidence: 99%