Abstract： ISO/IEC 15049:1997 pdf free download.lnformation technology - Telecommunications and informationexchange between systems- Private lntegrated Services Network — Specification, functional model and information flows -Advice of charge supple...

ISO/IEC 15049:1997 pdf free download.lnformation technology - Telecommunications and informationexchange between systems- Private

lntegrated Services Network — Specification, functional model and information flows -Advice of charge supplementary services.

6.3.13 Call Transfer (Cl)

If. prior to transfer, user A was receiving AOC-S information for the primary call, at the time of transfer. SS-AOC-S shall be stopped. If at the time of the transfer it is decided that user A will not be charged for the call prior to transfer, then the specific raze free of charge from the bcginrnn( shall be given to user A prior to stopping SS-AOC-S. The same applies for the secondary call if user A was receiving AOC-S information for that call.

User A shall not be allowed to invoke SS-AOC-S on a call resulting from transfer.

Aftcr transfer. SS-AOC-S may be invoked for user B (or C) cithcr automatically or on rcqucst from the user. If uscr C has not

answered at the time of transfer, it shall not be possible to invoke SS-AOC-S until after user C has answered. If the user for

which SS-AOC-S is invoked is to be charged for the call resulting from transfer, AOC S information in that case may contain charges incurred prior to transfer (as specific rate “flat rate”).

6.3.14 Completion of Calls to Busy Subscribers (CCBS)

If SS-AOC-S is invoked for a call and the call encounters a busy called user, then SS-AOC-S shall apply to a call resulting from

the use of SS-CCBS.

6.3.I Completion of Calls on No Reply (CCNR)

If SS-AOC-S is invoked for a call and the call fails to be answered, then SS.AOC-S shall apply to a call resulting from the use of SS-CCNR.

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