IMS Application Developer's Handbook

A

AAAA record

184 , 240

AAAA record queries

184–94 , 240–2 , 272–85

see also IP…

A record

143 , 184 , 240 , 241

A-SBG (access session border gateway)

231–2 , 237–41 , 243–9 , 270–85 , 287–92

see also P-CSCF ; SBC ; SBG ; SG

abstract syntax notation

162

abstraction hierarchy

44

abstraction levels, ‘spaces for value capture’

43–8 , 56

abstraction stack

15–17 , 20–1 , 43–4 , 331–6

see also applications ; Communication Service layer

ACA (appropriate accounting answer)

359–62

Accept-Contact SIP header

18–19 , 347 , 408–30

access forms

2–4 , 13–15 , 23 , 39–42 , 62–4 , 145 , 223 , 226 , 229–32 , 262–6 , 330–6 , 402–4 , 449–51

see also 3G… ; 4G ; ADSL ; connectivity… ; Ethernet ; fixed… ; WLANs

Access Point Name ...