TY - CONF AV - none CY - Karachi KW - Cost efficiency; Data network; IP protocol; IP-based networks; Networking technology; Open sources; Packet transmissions; Resource utilizations; Secure architectures; Service Quality; Telephony systems; Total transmission; Transmission delays; Voice over IP; Voice services; Voice signals; Voice traffic; Voice-over-WLAN; VoIP; VoIP performance; Wireless technologies; WLAN KW - Engineering research; Information technology; Internet protocols; Internet telephony; Jitter; Network architecture; Packet loss; Quality control; Quality of service; Speech communication; Speech transmission; Wireless local area networks (WLAN); Wireless telecommunication systems KW - Voice/data communication systems SP - 193 ID - scholars1901 TI - A secure architecture for open source VoIP solutions N1 - cited By 16; Conference of 4th International Conference on Information and Communication Technologies, ICICT 2011 ; Conference Date: 23 July 2011 Through 24 July 2011; Conference Code:86498 N2 - Voice over IP VoIP is a form of voice speech that uses data networks, for transmission of voice traffic over IP-based networks to transmit voice signals. The signal is correctly encoded at one end of the communication channel, sent as packets through the data network, then decoded at the receiving end and transformed back into a voice signal. It has a potential and offering a choice to the traditional telephony systems due to its high resource utilization and cost efficiency. Meanwhile, Wireless Local Area Networks (WLANs) have become an ever present networking technology that has been deployed around the world. Driven by these two popular technologies, Voice over WLAN (VoWLAN) has been promising as an infrastructure to provide low-cost wireless voice services. However, wireless technology was not designed to support voice transmission and recently enhancing its service quality is one of the main issues to be solved. Several metrics such as delay, jitter, and packet loss have impact on the QoS of VoIP. Minimizing total transmission delay, jitter and packet loss would maximize transmission throughput thus improving quality of service. In this research a VoIP transmission algorithm would be designed to reduce transmission delay in order to increase quality of service of VoIP. This research work is aimed to utilize IP protocols and provide a method to improve VoIP performance. © 2011 IEEE. SN - 9781457715532 Y1 - 2011/// EP - 198 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-80052719076&doi=10.1109%2fICICT.2011.5983558&partnerID=40&md5=c703fdcbc0981a57625608c35f4fd56f A1 - Sattar, F. A1 - Hussain, M. A1 - Nisar, K. ER -