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IMS Application Developer's Handbook by Mats Stille, Anders Ryde, Ioannis Fikouras, Catherine Mulligan, Ulf Olsson, Rogier Noldus

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H
H.223
379–80
H.225
145
H.261
117
H.323
145
hackers, future prospects
451
half-duplex voice communications
331–6
see also push-to-talk
handover procedures, SRVCC
431–47
hardware sales
352 , 356–62
HD video
2 , 13
header parameter
163
helpdesks
310–11
high layer compatibility
369
History-Info SIP header
389
HLR
10 , 24
HLR (home location register)
10–13 , 24 , 378–89 , 390–2

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