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中國(guó)電信H.248標(biāo)準(zhǔn)
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發(fā)表于 2008-04-17 22:12:19  只看樓主  QQ
中國(guó)電信H.248標(biāo)準(zhǔn)
【資料名稱】:中國(guó)電信H.248標(biāo)準(zhǔn)
【作者】:中國(guó)電信集團(tuán)公司
【語言】:中文
【頁數(shù)】:121
【格式】:PDF
【發(fā)表時(shí)間】:2004
【摘要或目錄】:
1 范圍................................................................................................................................ 7
2 引用標(biāo)準(zhǔn)......................................................................................................................... 7
3 定義................................................................................................................................ 7
4 縮略語............................................................................................................................. 8
5 協(xié)議在網(wǎng)絡(luò)中的位置..................................................................................................... 9
6 連接模型....................................................................................................................... 10
6.1 關(guān)聯(lián)....................................................................................................................................11
6.1.1 關(guān)聯(lián)屬性........................................................................................................................... 11
6.1.2 關(guān)聯(lián)的創(chuàng)建、刪除和修改............................................................................................... 12
6.2 終結(jié)點(diǎn)................................................................................................................................ 12
6.2.1 終結(jié)點(diǎn)的動(dòng)態(tài)性............................................................................................................... 14
6.2.2 終結(jié)點(diǎn)標(biāo)識(shí)符TerminationID .......................................................................................... 14
6.2.3 包(Package).................................................................................................................. 15
6.2.4 終結(jié)點(diǎn)的屬性和描述符................................................................................................... 15
6.2.5 根終結(jié)點(diǎn)(Root) ........................................................................................................... 17
7 命令............................................................................................................................... 17
7.1 描述符................................................................................................................................ 18
7.1.1 參數(shù)的指定....................................................................................................................... 18
7.1.2 Modem 描述符.................................................................................................................. 18
7.1.3 復(fù)用描述符(Mux)........................................................................................................ 18
7.1.4 媒體描述符(Media)..................................................................................................... 18
7.1.5 終結(jié)點(diǎn)狀態(tài)描述符(TerminationState)........................................................................ 19
7.1.6 流描述符(Stream)........................................................................................................ 19
7.1.7 本地控制描述符(LocalControl).................................................................................. 19
7.1.8 本地和遠(yuǎn)端描述符(Local 和Remote)........................................................................ 20
7.1.9 事件描述符(Events) .................................................................................................... 22
7.1.10 事件緩存描述符(EventBuffer).................................................................................... 22
7.1.11 信號(hào)描述符(Signals) ................................................................................................... 23
7.1.12 審計(jì)描述符(Audit)...................................................................................................... 24
7.1.13 業(yè)務(wù)改變描述符(ServiceChange) ............................................................................... 24
7.1.14 號(hào)碼表描述符(DigitMap)............................................................................................ 24
7.1.15 統(tǒng)計(jì)描述符(Statistics)................................................................................................. 27
7.1.16 包描述符(Packages) .................................................................................................... 28
7.1.17 被觀察事件描述符(ObservedEvents) ......................................................................... 28
7.1.18 拓?fù)涿枋龇═opology)................................................................................................ 28
7.1.19 錯(cuò)誤描述符(Error)....................................................................................................... 29
7.2 命令A(yù)PI............................................................................................................................ 30
7.2.1 Add................................................................................................................................... 30
7.2.2 Modify.............................................................................................................................. 31
7.2.3 Subtract............................................................................................................................. 31
7.2.4 Move................................................................................................................................. 32
7.2.5 AuditValue........................................................................................................................ 33
7.2.6 AuditCapabilities.............................................................................................................. 35
7.2.7 Notify................................................................................................................................ 35
7.2.8 ServiceChange.................................................................................................................. 36
7.2.9 關(guān)聯(lián)屬性的處理和審計(jì)................................................................................................... 38
7.2.10 通用命令語法................................................................................................................... 39
7.3 命令錯(cuò)誤碼........................................................................................................................ 39
8 事務(wù)(TRANSACTION).......................................................................................... 41
8.1 公共參數(shù)............................................................................................................................ 42
8.1.1 TransactionID .................................................................................................................... 42
8.1.2 ContextID .......................................................................................................................... 42
8.2 事務(wù)API............................................................................................................................ 42
8.2.1 TransactionRequest ........................................................................................................... 43
8.2.2 TransactionReply............................................................................................................... 43
8.2.3 TransactionPending ........................................................................................................... 44
8.3 消息................................................................................................................................... 44
9 協(xié)議傳送....................................................................................................................... 45
9.1 命令執(zhí)行的順序................................................................................................................ 45
9.2 預(yù)防重啟雪崩.................................................................................................................... 45
10 安全............................................................................................................................... 46
10.1 保護(hù)協(xié)議連接.................................................................................................................... 46
10.2 過渡性AH 方案................................................................................................................ 46
10.3 保護(hù)媒體連接.................................................................................................................... 47
11 MG-MGC 的控制接口................................................................................................ 47
11.1 多虛擬MG........................................................................................................................ 47
11.2 冷啟動(dòng)................................................................................................................................ 48
11.3 協(xié)議版本協(xié)商.................................................................................................................... 48
11.4 MG 故障............................................................................................................................ 49
11.5 MGC 故障......................................................................................................................... 49
11.6 心跳機(jī)制............................................................................................................................ 49
11.6.1 只有MGC 控制的心跳消息............................................................................................ 50
11.6.2 MGC 和MG 分別獨(dú)立控制的心跳消息......................................................................... 50
11.7 MGC-MG 控制連接中斷業(yè)務(wù)處理建議......................................................................... 50
11.7.1 MGC 檢測(cè)到中斷............................................................................................................. 50
11.7.2 MG 檢測(cè)到中斷................................................................................................................ 50
11.8 MGC-MG 控制連接中斷后又恢復(fù)的處理建議............................................................. 51
11.8.1 MGC 檢測(cè)到恢復(fù)............................................................................................................. 51
11.8.2 MG 檢測(cè)到恢復(fù)................................................................................................................ 51
11.9 超長(zhǎng)通話的審計(jì)................................................................................................................ 51
12 包的定義....................................................................................................................... 51
12.1 包定義規(guī)則........................................................................................................................ 52
12.1.1 包(Package).................................................................................................................. 52
12.1.2 屬性(Property) ............................................................................................................. 52
12.1.3 事件(Events) ................................................................................................................ 53
12.1.4 信號(hào)(Signals) ............................................................................................................... 53
12.1.5 統(tǒng)計(jì)(Statistics)............................................................................................................. 53
12.1.6 程序(Procedures) ......................................................................................................... 54
12.2 事件(EVENTS)和信號(hào)(SIGNALS)的參數(shù)定義規(guī)則................................................ 54
12.3 列表類型(LIST) ............................................................................................................ 54
12.4 標(biāo)識(shí)符(IDENTIFIER)的命名........................................................................................ 54
12.5 包的注冊(cè)............................................................................................................................ 54
13 IANA 注意事項(xiàng)............................................................................................................ 54
13.1 包....................................................................................................................................... 54
13.2 錯(cuò)誤碼................................................................................................................................ 55
13.3 SERVICECHANGE 原因值................................................................................................. 55
14 流程............................................................................................................................... 55
14.1 注冊(cè)流程............................................................................................................................ 56
14.2 注銷流程............................................................................................................................ 56
14.2.1 MG主動(dòng)注銷.................................................................................................................... 56
14.2.2 MGC 發(fā)生切換................................................................................................................. 57
14.2.3 MGC 退出對(duì)網(wǎng)關(guān)服務(wù)..................................................................................................... 57
14.3 單個(gè)終結(jié)點(diǎn)狀態(tài)改變........................................................................................................ 58
14.3.1 終結(jié)點(diǎn)退出服務(wù)............................................................................................................... 58
14.3.2 終結(jié)點(diǎn)發(fā)生故障退出服務(wù)............................................................................................... 58
14.3.3 終結(jié)點(diǎn)恢復(fù)服務(wù)............................................................................................................... 59
14.4 呼叫建立流程.................................................................................................................... 60
14.4.1 AG-AG 呼叫建立............................................................................................................. 60
14.4.2 TG-TG 呼叫建立.............................................................................................................. 62
14.5 呼叫釋放流程.................................................................................................................... 63
14.5.1 AG-AG 呼叫釋放............................................................................................................. 63
14.5.2 TG-TG 呼叫釋放.............................................................................................................. 67
14.6 放通知音流程.................................................................................................................... 68
14.7 MGC-MG 之間異常呼叫流程......................................................................................... 69
14.7.1 久不撥號(hào)........................................................................................................................... 69
14.7.2 空號(hào).................................................................................................................................. 70
14.7.3 錯(cuò)號(hào).................................................................................................................................. 71
14.7.4 后掛方久不掛機(jī)............................................................................................................... 72
14.8 補(bǔ)充業(yè)務(wù)流程.................................................................................................................... 73
14.8.1 呼叫前轉(zhuǎn)........................................................................................................................... 73
14.8.2 主叫號(hào)碼顯示................................................................................................................... 76
14.8.3 呼叫等待........................................................................................................................... 78
14.8.4 反極信號(hào)........................................................................................................................... 84
14.8.5 區(qū)別振鈴........................................................................................................................... 86
14.8.6 三方通話........................................................................................................................... 87
14.8.7 會(huì)議電話........................................................................................................................... 95
14.9 T.38 傳真業(yè)務(wù)流程......................................................................................................... 100
14.9.1 AG-AG 傳真建立(結(jié)束后切回語音) ............................................ 錯(cuò)誤!未定義書簽。
14.9.2 TG-TG 傳真建立(結(jié)束后切回語音) ............................................ 錯(cuò)誤!未定義書簽。
附件A 本協(xié)議二進(jìn)制編碼........................................................................................... 110
A.1 通配值編碼.......................................................................................................................110
A.2 ASN.1 語法規(guī)范...............................................................................................................112
附件B 本協(xié)議的文本編碼........................................................................................... 113
B.1 通配值編碼.......................................................................................................................113
B.2 ABNF 規(guī)范.......................................................................................................................113
B.3 十六進(jìn)制字節(jié)編碼(HEXADECIMAL OCTET CODING)...............................................113
B.4 十六進(jìn)制字節(jié)序列(HEXADECIMAL OCTET SEQUENCE) ..........................................113
附件C 媒體流屬性標(biāo)簽............................................................................................... 114
附件D 基于IP 傳輸H.248 協(xié)議的要求..................................................................... 115
D.1 使用應(yīng)用層幀結(jié)構(gòu)(ALF)在IP/UDP 上傳輸............................................................115
D.1.1 提供“At-Most-Once” 功能............................................................................................ 115
D.1.2 TransactionID 與三次握手機(jī)制..................................................................................... 116
D.1.3 計(jì)算重傳定時(shí)器............................................................................................................. 116
D.1.4 臨時(shí)響應(yīng)......................................................................................................................... 117
D.1.5 重復(fù)的請(qǐng)求、響應(yīng)和確認(rèn)............................................................................................. 118
D.2 在TCP 上傳輸.................................................................................................................119
D.2.1 提供At-Most-Once 功能................................................................................................ 119
D.2.2 TransactionID 和三次握手機(jī)制..................................................................................... 119
D.2.3 計(jì)算重傳定時(shí)器............................................................................................................. 119
D.2.4 臨時(shí)響應(yīng)......................................................................................................................... 119
D.2.5 命令的順序..................................................................................................................... 120

[ 本帖最后由 hcph98 于 2008-5-1 22:36 編輯 ]

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    發(fā)表于 2008-04-27 20:12:00  QQ
    路過。。。。。。。。。。。

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    發(fā)表于 2008-04-28 22:19:59  只看樓主  QQ

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    發(fā)表于 2008-05-08 08:05:48  只看樓主  QQ
    本人覺得是非常不錯(cuò)的資料

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    發(fā)表于 2008-05-10 22:34:07 
    本人覺得是非常不錯(cuò)的資料

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