1、CEPT T/CAC*E3*E 92 2326434 O033473 606 TKAC E39 E Page 1 Recommendation T/CAC E39 (-Athens 1992) GENERAL TARIFF AXD ACCOCNTIXG PRINCIPLES FOR PACKET XIODE SERVICES PROVIDED O-ER THE ISDS Recommendation proposed by the Coordination Group “CXCECO“ Tesr of the Recotiiriirnlatiori adopred b rhe Cotwierc
2、icil Action Committee i C.4C): PREAMBLE 1. This Recommendation provides general tariff and accounting principles for the earl!- implementation of packet mode services for terminals operating with the existing X.75 interface as n-ell as TE1 ISDS terminals. 2. This Recommendation covers charging princ
3、iples for on demand/semi-permanent access -ia B-and D-channel3 to either a port of the X.25 network or to a Packet Handler iP.H.1 in accordance with CEPT/T/CXC S 10-07 E. For the B-channel access two methods for layer 7 activation are included. For the D-channel access three methods for layer 7 acti
4、vation are included. i The European Conference of Postal and Telecommunications Adminihtrations. considering - that Recommendation T/CAC S 10-02 E provides a pragmatic framework to accommodate Packet Sv. itching opera- tions in the ISDN. thus minimizing implementation and interworking aspects. - tha
5、t during an interim period only the procedures set out in T/CAIC S 10-07 E concerning .;witched access -ia B-chan- ne1 will be implemented. and that with the introduction of EIIRO-ISDN Network operators should make effort to provide Packet Senices via the D-channel according to the groLving market r
6、equirements. - that such provisions for ISDN access to Packet Senices may lead to additional costs. - that charging and accounting for the services provided should take into account the structure of the existing services - that the general charging and accounting principles for intens-orliing betwee
7、n ISDS and the existing Public Data - that charging and accounting principles for Packet Snitched Services appear in the relevant CEPT Recommenda- provided over non-ISDN networks. Networks have been set out in T/CAC E37 E. tions, recogniLiiig - that the establishment of collection charges is a natio
8、nal matter. however Setwork operators should endeavour to - that subscription charges for the Basic Rate Access (BRA) and Primary Rate Access tPR.Ai are ahead!- covered harmonize the charging structure wherever practicable in order to promote the ISDS. under the provisions of T/CAC E26 E and T/CAC E
9、30 E. Edition of December 15. 1993 CEPT T/CAC*E39*E 92 W 232b4li4 OOlii11174 542 TICAC E39 E Page 2 1. 1.1. 1.2. 2. CHARGING PRINCIPLES B-channel access (on demand, semi-prmiincnt) Subscription charges may be levied to cover the cost of the packet mode mangement?;. The levei of such charges may vary
10、 according to the layer 2 contigunitions of T/CAC S10-O2 E and the user profile. It is however recognized that some networks may not rtiquirc specific subscription to the Packet Ser- vices since it may be offered as an alternative for general ISDN subscription. Duration charges may he levied for the
11、 ISDN connection to the X.25 access point. D-channel access (on deniand, semi-permanent) Subscription charges may be levied to cover the cost of the packet mode arrangements. The levei of such charges may vary according to the layer 2 configuritions set out in T/CAC S10-O2 E and the user profile. It
12、 is however recognized that some networks may not require specific subscription to the Packet Service since it may bc offered as an alternative for generul ISDN subscription. Volume based charges may be Icvied for the connection to the P.M. ACCOUNTING PRINCIPLES International accounting for PacketModeServices provided over theISDN should takeinto account the relevant provisions contained in Recommendation T/CAC E32 E.” Edition of June IS. 1992
