Zhone 3821Plus User's Guide Page 142
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COMSPHERE 3821Plus Modem
F-2 January 1999 3821-A2-GB20-40
Call Request Commands
Call Request commands are issued from the DTE to
the modem and are responsible for initiating any dial
calls. Call Request commands include Call Request with
Number Provided (CRN), Call Request with Stored
Memory Address Provided (CRS).
Call Request with Number Provided (CRN)
The CRN command dials the telephone number
entered from the DTE. CRN is similar to the ATD
command.
The CRN command format is:
CRNn
Where: n is the dial string. The following
characters are permitted:
T DTMF Dialing
P Pulse Dialing
0–9 DTMF Tones or Pulse .
Dialed Digits
* # A B C D DTMF Tones
R Reverse Dial
: Wait for Dial Tone
, or < User-Defined Pause
& Flash Hook
= or > Delimiters
Call Request with Stored
Memory Address Provided (CRS)
The CRS command dials the telephone number stored
in the request directory location. CRS is similar to the
ATDS command.
The CRS command format is:
CRSx
Where: x is directory location 1–10.
The modem responds to the command with either a
VAL (valid) or INV (invalid) response followed by a call
progress report such as connect (CNX) or failure (CFI).
Call Response
A Call Response indicates if the command was
accepted by the modem. Call Response includes Call
Failure Indication (CFI) and Call Connecting (CNX).
Call Failure Indication (CFI)
The CFI response is issued to the DTE if the modem
fails a CRN or CRS command. CFI is similar to the AT
result codes BUSY, NO ANSWER, NO CARRIER, NO
DIALTONE, and ERROR.
The CFI response format is:
CFIxx
Where: xx is
ET Engaged tone
NS Number not stored
CB Local DCE busy
RT Time-out on ring tone
AB Abort call on time-out
NT Answer tone not detected
FC Forbidden call
ET is similar to the Call Failure Messages Busy Signal
and Trunk Busy and the result code BUSY.
NS is similar to the Common Operational Message
Invalid Number and the result code ERROR.
CB is similar to the Call Failure Messages Dial Line in
Use and No Dial-Test and the result code ERROR.
RT is similar to the Call Failure Message No Answer
Tone and the result code NO CARRIER.
AB is similar to the Call Failure Messages No Dial
Tone and No Dial-DTR and the result code NO
DIALTONE and ERROR.
NT is similar to the Call Failure Message No Quiet
Answer and the result code NO ANSWER.
Delayed Call Indication (DLC)
The DLC response is issued to the DTE if the modem
is not currently allowed to call the number. DLC is similar
to the AT result code DELAYED.
The DLC response format is:
DLCxx
Where: xx is the delay before the number may be
called, in minutes.
- COMSPHERE 1
- Important Safety Instructions 3
- United States 5
- United Kingdom 6
- Ringer Equivalence Number 6
- Connection to Leased Lines 6
- All European Countries 7
- Safety Notice 7
- Restrictions 7
- Table of Contents 9
- COMSPHERE 3821Plus Modem 10
- Table of Contents 11
- Objectives and Reader 13
- Assumptions 13
- How to Use This Manual 13
- Related Documents 14
- Introduction 15
- Status Indicators 16
- Table 1-1 17
- Color Indicates 17
- SDCP Operation 18
- Modem Installation 19
- 495-14797 22
- Front Panel 22
- 495-14800 22
- 496-14801-01 23
- 495-14829 24
- SDCP Menus 27
- Menu Structure 28
- Modem Status Messages 29
- SDCP Menus 31
- Modem Select Branch 33
- Quick Configuration Display 33
- Call Setup Branch 35
- Change Directory 36
- Entering Telephone Numbers 36
- Status Branch 37
- Identity 38
- 494-14855 39
- Local Digital Loop 40
- Remote Digital Loop 40
- Configure Branch 41
- Configure 42
- DTE Interface 44
- Table 3-4 45
- (1 of 6) 45
- (2 of 6) 46
- (3 of 6) 47
- (4 of 6) 48
- (5 of 6) 49
- (6 of 6) 50
- DTE Dialer 51
- Table 3-5 52
- Line Dialer 56
- Table 3-6 57
- (2 of 4) 57
- (3 of 4) 58
- (4 of 4) 59
- Dial Line 60
- Table 3-7 61
- Leased Line 63
- Table 3-8 64
- V.42/MNP/Buffer 65
- Table 3-9 66
- Table 3-11 72
- Control Branch 73
- Clone To Remote 74
- To Local via DTE 74
- Remote Branch 75
- This page intentionally left 76
- AT Commands and S-Registers 77
- Command Guidelines 78
- AT Command List 78
- ATDT9,5551234 79
- Table 4-1 80
- (2 of 13) 80
- AT Commands 80
- (3 of 13) 81
- (4 of 13) 82
- (5 of 13) 83
- (6 of 13) 84
- D D 85
- (9 of 13) 87
- (10 of 13) 88
- (11 of 13) 89
- (12 of 13) 90
- (13 of 13) 91
- S-Register List 92
- (2 of 10) 93
- (3 of 10) 94
- (4 of 10) 95
- (5 of 10) 96
- (6 of 10) 97
- (7 of 10) 98
- (8 of 10) 99
- Table 4-2 100
- (9 of 10) 100
- S-Registers 100
- (10 of 10) 101
- Recovering AT Commands 102
- Initialization Strings 103
- Fax Operation 105
- Remote Access 107
- 495-13082a-02 108
- Security 109
- Originate Security 110
- Answer Security 110
- Callback Security 111
- Security Branch 111
- EditPassWdTable 112
- Select Index 112
- Table 7-1 113
- (2 of 2) 113
- Set Answer Sec 114
- Set Orig Secur 115
- Set CallBack Sec 115
- " Procedure 116
- Security Configuration 117
- Table 7-5 118
- (2 of 3) 118
- (3 of 3) 119
- SDCP Menu Tree 121
- 98-14848-01 122
- 98-14849-01 123
- 495-14850 124
- Result Codes 125
- Table B-1 126
- Troubleshooting 129
- Table C-5 131
- (1 of 2) 131
- Modem – VF Connection 131
- Automatic Firmware 133
- Download 133
- Technical Specifications 135
- Table D-1 136
- Model 3821 136
- Technical Specifications 136
- Specifications Description 136
- Pin Assignments 137
- JM8 to RJ11 Crossover Cable 138
- NIM Cable Pin Assignments 139
- Overview 141
- Call Request Commands 142
- Call Response 142
- Call Connecting (CNX) 143
- Incoming Call (INC) 143
- Disregard Incoming Call (DIC) 143
- Connect Incoming Call (CIC) 143
- Command Response 144
- Equipment List 147
- Configuration Options by 149
- Country Code 149
- Table H-1 150
- (1 of 5) 150
- (2 of 5) 151
- (3 of 5) 152
- (4 of 5) 153
- (5 of 5) 154
- Table H-2 155
- Glossary 161
- Glossary 163
- 00282600 175
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