Kriativ-techVolume 1, Issue 1, March 2018, Pages: xxxReceived: Nov. 28, 2017;Accepted: Dec. 8, 2017;Published: Feb. 24, 2018


Sérgio Pinto,Dep. de Estudos e Investigação em Tecnologias de Informação e Sociedade – ISTEC, Professor Adjunto do ISTEC



To cite this article

Sergio Pinto, “Perspectiva geral das redes IMS (IP Multimedia Subsytem)”DOI: 10.31112/kriativ-tech-2018-01-05


The IMS networks (IP Multimedia Subsystem) allow the telecommunications networks users to access several IP multimedia services from different terminals and IP access networks. Additionally, they intend to allow the operators to have a easier way for new services development, management and networks interoperability.This paper purpose is to have a brief description of the IMS networks main features, that justify its selection as the NGN (Next Generation Network) networks control standard.


IMS, IP, CSCF, AS, NGN, SIP, services, control e connectivity.


[1] Poikselka M., Mayer G., Khartabil H. & Niemi A. “The IMS IP Multimedia Concepts and Services”, 3th Edition, John Wiley & Sons, 2009.[2] 3GPP “TS 23.228 Digital cellular telecommunications system (Phase 2+)”; Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS).[3] ETSI/TISPAN “TS 182 006 IP Multimedia Subsystem (IMS)”; Stage 2 description.[4] ETSI “ES 282 007 IP Multimedia Subsystem (IMS)”; Functional architecture NGN IMS Architecture.[5] GSMA “VoLTE Service Description and Implementation Guidelines”, Version 2.0, October 2014.[6] Ericsson, “Introduction to IMS, White Paper”, 2007.[7] Ulticom, “IMS Signaling Architecture, White Paper”, 2005.[8] F5, “Introduction to the IP Multimedia Subsystem (IMS)”, 2016.[9] Gilles Bertrand, “The IP Multimedia Subsystem in Next Generation Networks”, 2007.[10]     Ericsson “MMTel – a standard for multimedia services over IMS, White Paper”, 2008.