SAP procedure for telecom sector

Dear All,
     This is with regards to a scenario which was given as a requirement in my company.
How to account " Airtime charges" in SAP. For example in telecom sector we have air time billing i.e customer is charged for the seconds or minutes he is using the services of the particular service provider. Please explain me the configuration steps that are involved in the process , i.e the document types, copy controls, item category used and how it is differentiated from other scenarios. Also how pricing procedure is done and Account determination is done for this scenario.
I tried in SAP help links but not able to get for this scenario.
Thanks in advance
Sivarajesh. J

hI,
See below link
http://help.sap.com/saphelp_telecom472/helpdata/en/3c/39ef43f34e5b4aac4fbf9faf35e043/frameset.htm
http://www.sap.com/industries/telecom/businessprocesses/convergent-charging/index.epx
Kapil

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    http://help.sap.com/saphelp_nw04/helpdata/en/eb/3e7cf7940e11d295df0000e82de14a/frameset.htm
    and
    http://help.sap.com/saphelp_nw04/helpdata/en/eb/3e7cf7940e11d295df0000e82de14a/frameset.htm
    Badihttp://help.sap.com/saphelp_erp2005/helpdata/en/73/7e7941601b1d09e10000000a155106/frameset.htm
    http://support.sas.com/rnd/papers/sugi30/SAP.ppt
    http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/abapindx.htm
    http://members.aol.com/_ht_a/skarkada/sap/
    http://www.ct-software.com/reportpool_frame.htm
    http://www.saphelp.com/SAP_Technical.htm
    http://www.kabai.com/abaps/q.htm
    http://www.guidancetech.com/people/holland/sap/abap/
    http://www.planetsap.com/download_abap_programs.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm
    /people/thomas.weiss/blog/2006/04/03/how-to-define-a-new-badi-within-the-enhancement-framework--part-3-of-the-series
    /people/thomas.weiss/blog/2006/04/18/how-to-implement-a-badi-and-how-to-use-a-filter--part-4-of-the-series-on-the-new-enhancement-framework
    http://esnips.com/doc/e06e4171-29df-462f-b857-54fac19a9d8e/ppt-on-badis.ppt
    http://esnips.com/doc/43a58f51-5d92-4213-913a-de05e9faac0d/Business-Addin.doc
    http://esnips.com/doc/10016c34-55a7-4b13-8f5f-bf720422d265/BADIs.pdf
    http://esnips.com/doc/1e10392e-64d8-4181-b2a5-5f04d8f87839/badi.doc
    http://esnips.com/doc/365d4c4d-9fcb-4189-85fd-866b7bf25257/customer-exits--badi.zip
    http://esnips.com/doc/3b7bbc09-c095-45a0-9e89-91f2f86ee8e9/BADI-Introduction.ppt
    http://help.sap.com//saphelp_470/helpdata/EN/eb/3e7cee940e11d295df0000e82de14a/frameset.htm
    sample code for Purchase requisition
    BAdI Name: ZPUR_RFQ (Implementation name) Purchase Requisitions
    Definition Name: ME_REQ_POSTED
    Interface Name : IF_EX_ME_REQ_POSTED
    Implementing Class: ZCL_IM_PUR_REQ
    Method :            POSTED
    METHOD if_ex_me_req_posted~posted .
      DATA : v_mtart TYPE mtart.
      DATA l_s_eban TYPE ueban.
      LOOP AT im_eban INTO l_s_eban.
        IF l_s_eban-estkz NE 'B'.
          CLEAR v_mtart.
          SELECT SINGLE  mtart INTO v_mtart FROM mara WHERE matnr = l_s_eban-matnr.
          IF v_mtart EQ 'ZERS' OR v_mtart EQ 'FHMI' OR v_mtart EQ 'UNBW'.
            MESSAGE e000(zm_msg) WITH 'You are not allowed' 'to create PR for stock items'.
          ENDIF.
        ENDIF.
        IF  l_s_eban-knttp NE 'F' OR l_s_eban-pstyp NE '9'.
          IF l_s_eban-knttp NE 'A'.
            IF ( l_s_eban-pstyp NE '9' AND l_s_eban-pstyp NE 'D' )  AND l_s_eban-matnr EQ
    space.
              MESSAGE e000(zm_msg) WITH 'You cannot create' 'a PR without material number'.
            ENDIF.
          ENDIF.
        ENDIF.
      ENDLOOP.
    ENDMETHOD.
    <b>Reward points for useful Answers</b>
    Regards
    Anji

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