Hadeel Saleh Haj Aliwi

A Mathematical Model of the Behavior of SIP Signaling and Media Messages

Over the last few years, many multimedia conferencing and Voice over Internet Protocol (VoIP) applications have been developed due to the use of signaling protocols in providing video, audio and text chatting services between at least two participants. This paper studies the behavior of the widely common signaling protocol; Session Initiation Protocol (SIP) in terms of the behavior of the signaling and media messages, as well as the delay time during call setup, call teardown, and media sessions.

The effect of packet loss in the homogeneous and heterogeneous protocols media exchange environment: A comparison

In the last few years, when two Internet users want to communicate via chatting application, they have to use the same application since each chatting application uses a certain signaling protocol to handle the chatting sessions. As a result, many researchers proposed some mapping architectures when two users want to communicate using different chatting applications by proposing a translation gateway in order to translate the message format of the sender to the receiver message format. This paper presents a comparison with respect to the packet loss for the homogeneous and heterogeneous protocols media exchange environments including the two main media session architectures.

IAX-JINGLE Network Architectures Based-One/Two Translation Gateways

Nowadays, Multimedia Communication has improved rapidly to allow people to communicate via the Internet. However, Internet users cannot communicate with each other unless they use the same chatting applications since each chatting application uses a certain signaling protocol to make the media call. The interworking module is a very critical issue since it solves the communication problems between any two protocols, and enables people around the world to make a voice/video call even if they use different chatting applications. Providing interoperability between different signaling protocols and multimedia applications takes the advantages of more than one protocol. Usually, each signaling protocol has its own messages which differ from other signaling protocol messages format. Thus, when two clients use different signaling protocols want to communicate phonetically, the sent/received messages between them will not be understood because the control and media packets in each protocol are different than the corresponding ones in the other protocol, The interworking module solves this kind of problem by matching the signals and media messages by providing translation gateways in the middle between the two protocols. Thus, many interworking modules have been proposed in order to enable many protocols’ users to chat with each other without any difficulties. This paper compares two interworking modules between Inter-Asterisk eXchange Protocol and Jingle Protocol. An experimental implementation in terms of session time is provided.

A PROPOSED MAPPING ARCHITECTURE BETWEEN IAX AND JINGLE PROTOCOLS

Nowadays, multimedia communication has improved rapidly to allow people to communicate via the Internet. However, Internet users cannot communicate with each other unless they use the same chatting applications since each chatting application uses a certain signaling protocol to make the media call. The mapping architecture is a very critical issue since it solves the communication problems between any two protocols, as well as it enables people around the world to make a voice/video call even if they use different chatting applications. Providing the interoperability between different signaling protocols and multimedia applications takes the advantages of more than one protocol. Many mapping architectures have been proposed to ease exchanging the media between at least two users without facing any difficulties such as SIP-Jingle, IAX-RSW, H.323-MGCP, etc. However, the design of any of the existing mapping architectures has some weaknesses related to larger delay, time consuming, and security matters. The only way to overcome these problems is to propose an efficient mapping architecture. This paper proposed a new mapping architecture between Inter-Asterisk eXchange Protocol and Jingle Protocol. The proposed mapping architecture consists of IAX domain (IAX client, IAX server, IAX-to-Jingle gateway), and Jingle domain (Jingle client, Jingle server, Jingle-to-IAX gateway). The tasks of the translation gateways are represented by the URI conversion, media capability exchange, translator of call setup and teardown signals, and real time media transmission.