01229    a2200277   4500003000500000005001700005020002000022040000900042082001400051082001400065082001400079082001800093100001800111245007800129260004400207300001200251440004700263505050200310650002600812650000800838650001800846650001800864650001700882650002200899650003000921NUST20221230141229.0  a0-89006-471-7 ;  cNust  a621.38456  a621.38456  a621.38456  a621.38456,HEI1 aHeine, Gunnar00aGSM networks :bprotocols, terminology and implementation /cGunnar Heine  aNorwood, Mass. :bArtech House,cc.1999  a416 p.; 0aArtech House mobile communications series,  aIntroduction (Page-1), The Mobile Station and the Subscriber Identity Module (Page-13), The Base Station Subsystem (Page-19), The Network Switching Subsystem (Page-31), The OSI Reference Model (Page-39), The Abis-Interface (Page-51), The Air-Interface of GSM (Page-89), Signaling System Number (Page-125), Signaling Connection Control Part (Page-153), The A-Interface (Page-171), Transaction Capabilities and Mobile Application Part (Page-185), Scenarios (Page-225), Quality of Service (Page-275). 4aDigital mobiltelefoni 4aGSM 4aMobiltelefoni 4aMobiltelefoni 4aTelefonn�t 4aTelephone systems 4aTr�dl�s kommunikation