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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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O
O&M
15
O2
28
OAuth API
97–104
OCS (Online Charging System)
359–62
off-the-shelf software technologies
60–80 , 81–104
offer–answer model
209–22 , 225 , 270–85 , 312–16 , 328 , 373–89
see also SDP
offline/online charging models
357–62
oligopolies
28
OLSM
294–8
see also S-CSCF
OMA (Open Mobile Alliance)
15 , 20–1 , 49–58 , 336 , 337–46 , 402–5 , 414–30 , 450
see also presence
OMA CPM
416
OMA IM
415 , 420
OMA Presence
417
OneAPI
20 , 58 , 335
one call half SIP-AS interactions
299–300
One Voice initiative
7 , 431–2 ...

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