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INTERNATIONAL TELECOMMUNICATION UNION
ITU-T RECOMMENDATION SUMMARY
Rec. No. : D.232
Title : Specific tariff and accounting principles applicable to ISDN
supplementary services
Study Group : III - Tariff and Accounting Principles
Version : Revised
Date of adoption : 1992
Notes :
General charging and accounting principles for ISDN supplementary
services may be found in Recommendation D.230. This Recommendation
indicates the application of the general principles to each ISDN
supplementary service. The supplementary services are placed in
logical groupings where they share similar considerations and
charging principles. Annex A of this Recommendation summarizes the
charging mechanisms and support requirements.
Recommendation D.232 sets out the charging principles for number
identification, Direct Dialling-In and Multiple Subscriber Number,
Call Forward and Call Transfer, Line Hunting, Call Waiting and Call
Hold, Conference, Closed User Group, Advice of Charge, Priority and
Multi-level Precedence and Preemption supplementary services.
To order the complete text of this Recommendation, please use the
Order Form for ITU-T Recommendations. An electronic version of this
form is available on ITUDOC (Winword: UPI=ITU-5265; ASCII: UPI=ITU-2488).