Справочник Пользователя для Dialogic 05-0867-005
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Table of Contents
1. How To Use This Guide .................................................................................. 1
1.1. Products Covered by this Guide ..................................................................... 1
1.2. Organization of this Guide.............................................................................. 1
1.2. Organization of this Guide.............................................................................. 1
2. Introduction to Dialogic ISDN Products ....................................................... 3
2.1. The Basic Rate Interface................................................................................. 3
2.1.1. Features of BRI ...................................................................................... 4
2.1.2. Typical BRI Applications ...................................................................... 7
2.1.2. Typical BRI Applications ...................................................................... 7
2.2. The Primary Rate Interface ............................................................................. 7
2.2.1. Benefits of PRI....................................................................................... 8
2.2.2. PRI Configurations and Applications .................................................... 9
2.2.2. PRI Configurations and Applications .................................................... 9
2.3. Dialogic ISDN Protocol Support .................................................................. 11
3. ISDN Technology Overview ......................................................................... 13
3.1. Signaling....................................................................................................... 13
3.2. Framing......................................................................................................... 14
3.2. Framing......................................................................................................... 14
3.2.1. Data Link Layer (Layer 2) Frames....................................................... 14
3.2.2. Network Layer (Layer 3) Frames......................................................... 14
3.2.2. Network Layer (Layer 3) Frames......................................................... 14
3.3. ISDN Call Control States.............................................................................. 15
3.3.1. Asynchronous Call Establishment........................................................ 17
3.3.2. Synchronous Call Establishment.......................................................... 20
3.3.3. Asynchronous Call Termination .......................................................... 23
3.3.4. Synchronous Call Termination............................................................. 25
3.3.2. Synchronous Call Establishment.......................................................... 20
3.3.3. Asynchronous Call Termination .......................................................... 23
3.3.4. Synchronous Call Termination............................................................. 25
4. ISDN Function Overview .............................................................................. 29
4.1. ISDN Library Function Categories ............................................................... 29
4.2. API Functions and Supported ISDN Technologies ...................................... 40
4.2. API Functions and Supported ISDN Technologies ...................................... 40
5. ISDN Function Reference ............................................................................. 45
5.1. Function Description Format ........................................................................ 45
5.2. Programming Conventions ........................................................................... 47
5.3. Function References: CRNs, CRVs, and Line Device Handles .................... 47
5.4. Interpreting Function Call Failures ............................................................... 48
cc_AcceptCall( ) - responds to an incoming call request ...................................... 50
cc_AnswerCall( ) - accepts a connection request from the remote end ................ 53
cc_CallAck( ) - send the first response to an incoming call .................................. 56
cc_CallProgress( ) - sends a PROGRESS message to the network....................... 60
cc_CallState( ) - retrieves the state of a call.......................................................... 63
5.2. Programming Conventions ........................................................................... 47
5.3. Function References: CRNs, CRVs, and Line Device Handles .................... 47
5.4. Interpreting Function Call Failures ............................................................... 48
cc_AcceptCall( ) - responds to an incoming call request ...................................... 50
cc_AnswerCall( ) - accepts a connection request from the remote end ................ 53
cc_CallAck( ) - send the first response to an incoming call .................................. 56
cc_CallProgress( ) - sends a PROGRESS message to the network....................... 60
cc_CallState( ) - retrieves the state of a call.......................................................... 63