Results 21 to 30 of about 323,732 (380)
Alternative and emergency cellular system based on OpenBTS and SDR
Revista Elektrón, 2022 The Global System for Mobile Communications (GSM) has been widely accepted around the world. The implementation of this system for a comunity are expensive because to use high-cost equipment, but thanks to the development of software-defined radio ...
Alian Ernesto Matos Rodríguez +1 more
doaj +1 more source
WAYS OF THE ASTERISK SOFTWARE PBX PROTECTION
T-Comm, 2023 Network protection of the Asterisk software PBX widely used in modern info-communication networks is considered. This particular telephone exchange is used to set up telephone communications at the Moscow Technical University of Communications and ...
V. Antonova, E. Malikova, M. S. Stepanov
semanticscholar +1 more source
Open Heart, 2022 Objective To use echocardiographic and clinical features to develop an explainable clinical risk prediction model in patients with aortic stenosis (AS), including those with low-gradient AS (LGAS), using machine learning (ML).
M. Namasivayam +7 more
semanticscholar +1 more source
A Scalable Management Method for Asterisk-based Internet Telephony System
Journal of Digital Convergence, 2014 Eunyong Ha
exaly +2 more sources
Left main coronary artery perforation after rotational atherectomy
REC: Interventional Cardiology (English Ed.), 2021 Eighty-five-year-old woman with unstable angina with serious and heavily calcified lesions in proximal right coronary arteries (figure 1A, asterisk) and proximal and mid left anterior descending coronary artery (figure 1B, asterisk).
Alfonso Jurado-Román +5 more
doaj +1 more source
Pengembangan Server VOIP Menggunakan FREEPBX Dan Asterisk Berbasis Raspberry PI
Protek: Jurnal Ilmiah Teknik Elektro, 2021 Raspberry Pi is a single board computer that the author uses as a voip server based on asterisk. To use this voip network, each device must have a static IP as well as be connected to a stable network.
Nasron Nasron +2 more
doaj +1 more source
Multiple Transcoding Impact on Speech Quality in Ideal Network Conditions
Advances in Electrical and Electronic Engineering, 2015 This paper deals with the impact of transcoding on the speech quality. We have focused mainly on the transcoding between codecs without the negative influence of the network parameters such as packet loss and delay.
Martin Mikulec +3 more
doaj +1 more source
Clinical Chemistry, 2015 Arguably, one of the most important elements of any clinical laboratory test is the reference interval, the values that help physicians interpret their patients' test results. Although it is frequently recommended that laboratories establish their own reference limits with their own methods and local patient populations (1), few laboratories have the ...
openaire +2 more sources
Automatically Provisioned Embedded Communication System Based on Openwrt Platform
Communications, 2016 The article deals with a design of a system that provides tools for creation of automatically provisioned embedded communication system and its components.
Jiri Slachta +4 more
doaj +1 more source
Improvement of Network Efficiency on the Grounds of Change Communication Protocol
Advances in Electrical and Electronic Engineering, 2012 This article deals with both theoretical and practical application of Extensible Messaging and Presence Protocol instead of different solution described detailed in the article.
Jiri Vychodil +3 more
doaj +1 more source