23 research outputs found
A Comparison Between Inter-Asterisk eXchange Protocol and Jingle Protocol: Session Time
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 compares between two widely common signaling
protocols: InterAsterisk eXchange Protocol (IAX) and the
extension of the eXtensible Messaging and Presence Protocol
(Jingle) in terms of delay time during call setup, call teardown,
and media sessions
Real Time Conference Gateway For Heterogeneous Clients : Real Time Switching Clients And Inter-Asterisk Exchange Clients
Various standards organizations have considered signaling for voice and video over Internet
Protocol(IP) from different approaches. The Inter-Asterisk eXchange (IAX) protocol is
used as the promising VoIP protocol by the service provider because of its simplicity and NAT
friendliness. Meanwhile, the Real time SWitching (RSW) has the ability to combine voice and
video services. Incidentally, these two heterogeneous clients pose considerable problems for
users who have to choose between two solutions offering different advantages and disadvantages.
While RSW is being used in many areas, IAX is being deployed in many VoIP services.
Hence, RSW interoperability and coexistence with IAX is considered very important to support
new deployments that could use RSW as an alternative packet telephony signaling protocol.
We proposed and implemented the conference gateway (CG), which enables the heterogeneous
clients to communicate seamlessly. It has two modules, one is signaling, the other
is media module. In signaling module, we have converted signaling and control messages of
RSW and IAX respectively to achieve seamless signaling communication between heterogeneous
clients via CG. The signaling module includes authentication of heterogeneous clients
(RSW and IAX) before they start communication, conversion of Uniform Resource Indicator
to reach remote clients, setup media calls and exchange media capability
Mars Spacecraft Power System Development Final Report
Development of optimum Mariner spacecraft power system for application to future flyby and orbiter mission
Why international organization for education?
Thesis (M.A.)--Boston University, 1949. This item was digitized by the Internet Archive
The rise of Anglo-Indian literature: being a definition of the term and the place of the letters and journals of 1579-1626 therein
Dissertation (Ph.D.)--Boston University, 1938. This item was digitized by the Internet Archive
The status of secretarial science in 50 selected teacher-education institutions
Thesis (M.A.)--Boston University, 1947. This item was digitized by the Internet Archive
The status of secretarial science in 50 selected teacher-education institutions
Thesis (M.A.)--Boston University, 1947. This item was digitized by the Internet Archive
Study of solar array switching power management technology for space power system
This report documents work performed on the Solar Array Switching Power Management Study. Mission characteristics for three missions were defined to the depth necessary to determine their power management requirements. Solar array switching concepts which could satisfy the mission requirements were identified. The switching concepts were compared with a conventional buck regulator system for cost, weight and volume, reliability, efficiency and thermal control. Solar array switching provided significant advantages in all areas of comparison for the reviewed missions