Advanced Concept of Voice Communication Server on Embedded Platform

• Autorzy: Voznak M. , Tomala K. , Vychodil J. , Slachta J.

Warianty tytułu

PL

Ulepszona koncepcja serwera komunikacji głosowej na platformie osadzonej

• Języki publikacji: EN

Abstrakty

EN

The paper deals with a design of an embedded Voice communication server which was developed within the scope of the BESIP project (Bright Embedded Solution for IP Telephony). The project brings a modular architecture with additional functionality such as a speech quality monitoring and a protection against security threats.The speech quality assessment is carried out in a simplified computational E-model and we implemented our proposal into the BESIP as an optional component. In the security module. We applied a standard approach to the intrusion detection and protection and in addition to the mentioned modules we come up with an idea of unified configuration based on the NETCONF protocol. We implemented ntegrated the complex support of NETCONF configuration protoco into OpenWRT and our modifications were accepted by OpenWRT community. The paper describes the inidvidual modules, their features and entire BESIP concept.

PL

W artykule przedstawiono budowę serwera komunikacji głosowej, jako część projektu BESIP. Opracowano architekturę modułową, posiadającą dodatkowe funkcjonalności, takie jak: kontrola jakości dźwięku mowy i ochrona przed zagrożeniami zewnętrznymi. Zastosowano ideę konfiguracji jednolitej, opartej na protokole NETCONF. Opisany został każdy z modułów, ich funkcjonalność i cały projekt BESIP.

Słowa kluczowe

EN

BESIP; NETCONF protocol; OpenWRT; Speech quality; VoIP security

PL

BESIP; NETCONF; OpenWRT; jakość mowy; ochrona VoIP

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 2b
• Strony: 228--233
• Opis fizyczny: Bibliogr. 15 poz., schem., wykr.

Twórcy

autor

Voznak M.

• VSB-Technical University of Ostrava, Czech Republic

autor

Tomala K.

• VSB-Technical University of Ostrava, Czech Republic

autor

Vychodil J.

• VSB-Technical University of Ostrava, Czech Republic

autor

Slachta J.

• VSB-Technical University of Ostrava, Czech Republic

Bibliografia

• [1] Surhone L., Tennoe M., Henssonow M., Susan F., OpenWRT, Betascript Publishing, (2011)
• [2] Macura L., Voznak M., Tomala K., Slachta J., Embedded Multiplatform SIP Server Solution, In Proc. 35th International Conference on Telecommunication and Signal Processing, Prague (2012), 263-266
• [3] Macura L., Voznak M. , Kamailio syntax generator and configuration file parser, In Proc. 15th WSEAS International Conference on Computers, Corfu (2011), 308-312
• [4] Enns R. et al., Network Configuration Protocol (NETCONF), IETF RFC 6241 (2011)
• [5] Voznak M. , Safarik , J., DoS attacks targeting SIP server and improvements of robustness, International Journal of Mathematics and Computers in Simulation, Volume 6 (2012), Issue 1, 177-184
• [6] Source code of BESIP Project, LipTel Team, 2011. Available: http://liptel.vsb.cz/mirror/besip/nightly
• [7] Cutuli G., Mumolo E., Tessarotto M.,An XML-based virtual machine for distributed computing in a For/Join framework, In Proc. 24th Int. Conf. Information Technology Interface, Cavtat, Croatia (2002), 471-477
• [8] Chisholm S., Trevino H., NETCONF Event Notifications, IETF RFC 5277 (2008)
• [9] Scott M., Bjorklund M., YANG Module for NETCONF Monitoring, IETF RFC 6022 (2010)
• [10] Libnetconf, NETCONF library in C. Available: http://code.google.com/p/libnetconf
• [11] Voznak M., Advanced implementation of IP telephony at Czech universities, WSEAS Transactions on Communications, Volume 9 (2010), Issue 10, 679-693
• [12] Voznak M., E-model modification for case of cascade codecs arrangement, International Journal of Mathematical Models and Methods in Applied Sciences, Volume 5 (2011), Issue 8, 1439-1447
• [13] Transmission impairments due to speech processing, ITU-T Recommendation G.113, Geneva (2007)
• [14] Cole G., Rosenbluth, Voice over IP performance monitoring, ACM SIGCOMM Computer Communication, New York (2001)
• [15] The E-model: A computational model for use in transmission planning, ITU-T Recommendation G.107, Geneva (2011)