Essays about: "telephony over ip"

Showing result 1 - 5 of 30 essays containing the words telephony over ip.

1. 1. Analyzing VoIP connectivity and performance issues

   University essay from

   Author : Mehenni Sadaoui; [2019]
   Keywords : VoIP; connectivity and performance issues; call quality; packet traces.;

   Abstract : The appearance of Voice over IP (VoIP) revolutionized the telecommunications word, this technology delivers voice communications over the internet protocol (IP) networks instead of the public switched telephone network (PSTN), calls can be made between two VoIP phones as well as between a VoIP phone and an analog phone connected to a VoIP adapter [1]. The use of this technology gives access to more communication options compared to the conventional telephony but the users face different problems, mostly connectivity and performance issues related to different factors such as latency and jitter [2], these factors affect directly the call quality and can result in choppy voice, echoes, or even in a call failure. READ MORE

3. 2. A reverse proxy for VoIP : Or how to improve security in a ToIP network

   University essay from KTH/Kommunikationsnät

   Author : Guillaume Dhainaut; [2016]
   Keywords : VoIP; ToIP; SIP; SIPS; RTP; SRTP; SBC; session border controller; security; toll fraud;

   Abstract : The need for security is crucial in Telephony over IP (ToIP). Secure protocols have been designed as well as specific devices to fulfill that need. This master thesis examines one of such devices called Session Border Controller (SBC), which can be compared to reverse proxies for ToIP. The idea is to apply message filters to increase security. READ MORE

4. 3. Design of IP Multimedia Subsystem for Educational Purposes

   University essay from KTH/Radio Systems Laboratory (RS Lab)

   Author : Mikael Rudholm; [2015]
   Keywords : IMS; Next generation networking; Internet telephony; SIP application; service creation; virtual machines; IMS; nästa generations nätverk; Internet-telefoni; SIP applikationer; utveckla tjänster; virtuella maskiner;

   Abstract : Internet Protocol multimedia subsystem (IMS) is an architecture for services such as voice over Internet Protocol (VoIP) in IP based communication systems. IMS is standardized by the 3GPP standardization forum, and was first released in 2002. Since then IMS has not had the wide adoption by operators as first anticipated. READ MORE

5. 4. Unified Communications with Lync 2013

   University essay from KTH/Radio Systems Laboratory (RS Lab)

   Author : Alexandre Kohen; [2013]
   Keywords : Unified communications; Microsoft Lync 2013; Enterprise Voice; voice over IP; Telephony; Samordnad kommunikation; Microsoft Lync 2013; Enterprise Voice; röst över IP; telephoni;

   Abstract : Unified Communications solutions bring together several communication modes, technologies, and applications in order to answer businesses’ and individuals’ growing need for simpler, faster, and more effective communications means.  Although many hardware-based products allow the integration of telephony within a computer network environment, telephony features of software-based unified communications solutions are seldom used, which limits their effectiveness or requires another solution to be used jointly. READ MORE

6. 5. SIP Security Threats and Countermeasures

   University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

   Author : Faisal Mahmood; [2012]
   Keywords : Security of SIP;

   Abstract : With the emergence of multimedia applications and the upcoming age of Voice over IP (VoIP), Voice setup and resources control protocols such as SIP and H.323 over the Internet are becoming increasingly attractive applications. READ MORE