【正文】
和傳輸資源進(jìn)行抽象的對(duì)象 ( a “connection control” INSSM would contain objects that are abstractions of switching and transmission resources. ) INSSM instance ( INSSM實(shí)例) Connection point (連接點(diǎn)) Unconnected led (非連接支路) Passive legs (無源支路) Connected leg (連接支路) Controlling leg (控制支路) Figure 412/ Connection control INSSM instance(連接控制 INSSM實(shí)例) 呼叫段 呼叫段 呼叫段 呼叫段 Functional separation SSF/CCF SSF/CCF SCF INSSM ( abstract view of call segment) Figure 413/ Call segments in twoparty interSSF/CCF call (功能上分開) Call Segment(呼叫段) : The IN CS1 connection control INSSM provides the SCF with an abstract view of an isolated portion of a call managed by a functionally separate portion of the SSF/CCF. This isolated portion of a call is referred to as a “halfcall” or call segment ( Abstract view of call segments) SCF INSSM Figure 414/ Associated call segments(相關(guān)呼叫段) 呼叫段 呼叫段 SSF/CCF 呼叫段 呼叫段 呼叫段 呼叫段 SSF/CCF 呼叫段 呼叫段 Associated call segments 從 A至 B的現(xiàn)有呼叫 從 C至 A的新呼叫 A B C SCF SSF/CCF Orig BCSM SSF/CCF A Term BCSM Orig BCSM Term BCSM B Control relationship(控制關(guān)系) [provides access to originating call segment as represented by an INSSM]( [提供對(duì)發(fā)端呼叫段的接入,發(fā)端呼叫段通過 INSSM來表示 ]) BCSM in originating call segment(在發(fā)端呼叫段中的 BCSM) Figure 415/ Singleended control of a two –party call (兩用戶間呼叫的單端控制) 屬性交互管理( FIM) /呼叫管理( CM) ? 呼叫管理 ( CM : Call Manager )的功能: – 協(xié)調(diào)與一個(gè)給定的 IN CS1連接控制 INSSM對(duì)應(yīng)的多個(gè) BCSM的事件報(bào)告 – 協(xié)調(diào)與一個(gè)給定的 IN CS1連接控制 INSSM對(duì)應(yīng)的多個(gè) BCSM處理的掛起和恢復(fù)( suspension and resumption) – 執(zhí)行與 IN CS1連接控制 INSSM有關(guān)的規(guī)則和約束(例如,什么時(shí)間、怎樣操作 leg、將一對(duì)呼叫段關(guān)聯(lián)、合并一對(duì)相關(guān)呼叫段) ? 屬性交互管理 ( FIM: Feature Interaction Manager )的功能: – 提供業(yè)務(wù)邏輯實(shí)例選擇機(jī)制,以確定在一個(gè) DP上調(diào)用哪個(gè)業(yè)務(wù)邏輯實(shí)例。此機(jī)制可以選擇合適的 IN業(yè)務(wù)邏輯實(shí)例或非 IN業(yè)務(wù)邏輯實(shí)例,對(duì)于 IN CS1而言,對(duì)一個(gè)特定的 DP,此機(jī)制可以阻塞其它業(yè)務(wù)邏輯實(shí)例的調(diào)用 – FIM并不總是允許同時(shí)激活對(duì)呼叫 /連接進(jìn)行控制的 IN業(yè)務(wù)邏輯實(shí)例和非 IN業(yè)務(wù)邏輯實(shí)例 – FIM應(yīng)該提供一種機(jī)制來支持對(duì)簡(jiǎn)單的、受限的業(yè)務(wù)邏輯實(shí)例交互。這些交互是作用于同一呼叫段上的不同 SCF中的業(yè)務(wù)邏輯實(shí)例之間的交互。 Basic call manager NonIN feature manager Feature interactions manager/call manager INSwitching manager SCF SSF/CCF SCF information flow SSF information flow IN event indication IN Control request BCM event indication BCM control request NonIN event indication NonIN control request Figure 418/ SSF/CCF model information flows ( SSF/CCF模型信息流) 作業(yè) ? 閱讀 ITUT建議以下內(nèi)容: – ( 93年版本)附錄 A: Example basic call state model (BCSM) – ( 95年版本)的 ? : Service invocation and control ? : IN functional model ? : Definition of functional entities related to IN service execution ? : Overview ? : General ? : Basic Call Manager (BCM) ? : INswitching manager( INSM) ? : Feature Interactions Manager (FIM)/Call Manager (CM) 中有關(guān)CM的內(nèi)容 要求寫一份讀書筆記,就以下內(nèi)容進(jìn)行歸納、總結(jié): – 呼叫模型( call modeling) – BCSM的作用、組成, OBCSM與 TBCSM的關(guān)系 – 如何理解 DP 要求下下次課之前提交,字?jǐn)?shù)在 2021~3000之間