000000125 001__ 125
000000125 005__ 20190316233046.0
000000125 0247_ $$2doi$$a10.1109/35.762865
000000125 02470 $$2ISI$$a000080120900012
000000125 037__ $$aARTICLE
000000125 245__ $$aVoice Service Interworking for PSTN and IP Networks
000000125 269__ $$a1999
000000125 260__ $$c1999
000000125 336__ $$aJournal Articles
000000125 520__ $$an recent years, the Internet has proven its ability to carry real-time data, including voice. Today, a small amount of voice traffic has already been diverted from the Public Switched Telephone Network (PSTN) to the Internet. If it expands, this phenomenon can completely change the rules of the game for telecommunications. This paper presents an overview of the main technical problems to be addressed for the provision of interoperable services between IP Telephony and the PSTN. The pivotal element of the solution resides in an interworking function. This function is typically implemented in a gateway whose requirements and behavior are here analyzed in terms of signaling and control protocols (control plane), user data transfer (user plane) and management features (management plane). The presentation is structured around these three planes. The control plane defines the set of signaling protocols to be used in each networking context and the translation between them. Detailed scenarios illustrate the signal translation in the gateway allowing for the establishment of a hybrid phone call. The user plane is responsible for adapting the user data to the properties of each network channel and determines the Quality of Service of the voice call in terms of delay and speech quality. In the management plane, the issues of network, service, security and policy management are discussed.
000000125 6531_ $$aPSTN
000000125 6531_ $$aIP Telphony
000000125 6531_ $$aInterworking
000000125 6531_ $$aH.323
000000125 6531_ $$aSignaling
000000125 700__ $$aHamdi, M.
000000125 700__ $$aVerscheure, O.
000000125 700__ $$0240456$$g105427$$aHubaux, J. P.
000000125 700__ $$aDalgic, Ismail
000000125 700__ $$aWang, Peter
000000125 773__ $$j37$$tIEEE Communications Magazine. Feature Topic on Interoperability of Networks for Interoperable Services$$k5$$q104-111
000000125 8564_ $$uhttps://infoscience.epfl.ch/record/125/files/HamdiVHDW99.pdf$$zn/a$$s1087371
000000125 909C0 $$xU10426$$0252452$$pLCA1
000000125 909CO $$qGLOBAL_SET$$pIC$$ooai:infoscience.tind.io:125$$particle
000000125 917Z8 $$x148230
000000125 937__ $$aLCA-ARTICLE-1999-003
000000125 970__ $$a255/LCA
000000125 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000000125 980__ $$aARTICLE