Panasonic dBs Instrucciones de operaciones Pagina 139
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Panasonic Digital Business System - Operating Instructions
March 1997 Issue 24
139
Appendix A - Analogue Network Disconnect Clear Signalling*
With the advent of systems which can connect trunk to trunk on the analogue network it is important that CPC signalling is
understood by installation and maintenance engineers. This will allow a smoother installation or upgrade. These notes do not
apply to ISDN lines where the signalling is taken care of by the D channels.
CPC or calling party clearing is also known by the names Clear Disconnect or Disconnect Clear. In an ideal situation this is a
period of zero current flow for between 100ms and 800ms dependant upon the network exchange settings. This is electrically
equivalent to a short disconnection of the exchange line.
The SBS and DBS can be programmed to ‘see’ a CPC period of 50ms or more and use this to detect the end of an incoming
call. See the appropriate Installation and Programming Manuals for details.
Briefly for DBS FF2 1# (line)# 15# 1#
Briefly for SBS Mode 1 0602# 2# Trunk to trunk end type
Mode 2 (01-04)20# 2# Incoming call end type
Mode 2 (01-04)21# 2# Exchange line disconnect signal detection
Mode 2 (01-04)22# 0# Break detection timer
Breifly for KXT308 Register 20 * SELECT enable MEMORY END
Breifly for KXT616 Register 36 NEXT * SELECT enable MEMORY END
Breifly for KXT1232 Register 55 NEXT * 11 MEMORY END
Register 92 NEXT * enable MEMORY END
Breifly for KXTD1232 Register 405 NEXT * 12 MEMORY END
Register 415 NEXT * SELECT enable MEMORY END
50ms is the minimum detection time to avoid erroneous clearing due to spurious line conditions. If required, longer detection
times can be specified, but with this minimum setting any period of 50ms of zero current will clear the incoming call. Any
longer setting at the network exchange is fine so in many cases the default setting 800ms can be left in place as the system
needs only a 50ms block within this time.
The diagrams following show the line voltages for the A and B wires on an incoming call to better show what occurs.
- Panasonic 1
- Digital Business System 1
- Operating Instructions 1
- Contents 2
- Introduction 7
- Important Information 8
- Types Of Extension 8
- Proprietary Key Telephones 8
- Extension Features 9
- LCD Contrast Adjustment 11
- Ringing Volume 11
- Speaker Volume 12
- Line Volume 13
- Fitting The Directory Tray 14
- Making An Outside Line Call 15
- Direct Outside Line Access 16
- Line Group Dialling 17
- Prime Line Access 18
- ISDN Line 19
- LINE Key And Live Keypad 20
- Making An Internal Call 21
- Calling The System Operator 22
- Operator Call Queuing 22
- Receiving Calls 23
- Outside Line Calls 24
- Auto Answer 24
- Call Pick Up 25
- Group Pick Up 25
- Directed Call Pick Up 26
- Handsfree Answerback 26
- Group Ringing 27
- Group Ringing - CPC-EX v2.1 28
- Holding Calls 29
- Exclusive Hold 30
- Intercom Hold 30
- Brokers Hold 31
- Extension Park Hold 32
- Operator Park Hold 33
- Call Transfer 34
- Unsupervised Transfer 35
- Special Keys 35
- Conference Calls 38
- External Conference 39
- Internal Conference 39
- Busy Override 40
- Privacy Release 40
- When You Receive Busy Tone 41
- Exchange Line Camp On 42
- Call Back Message 43
- Call Waiting 46
- Call Waiting With Message 47
- Voice Announce 48
- Call Forwarding 52
- Message Lamps 53
- Call Forward ID 53
- Setting call forward 55
- Other System Features 60
- Do Not Disturb 61
- Hunt Groups 62
- Manager Secretary Groups 63
- Personal Speed Dial 66
- Storing a personal speed dial 67
- System Speed Dials 68
- Confirming Stored Data 70
- Last Number Redial 73
- Save Dial 74
- Dedicated Line To Extension 75
- Off Hook Signalling 75
- Music On Hold 75
- Hold Reminder 75
- Internal Dial Tone Mute 78
- Direct Inward System Access 79
- DISA Break Out 79
- Least Cost Routing 79
- Call Barring 80
- Station Lock 80
- Handsets 82
- The VBD Range OF Handsets 83
- Optional Features 86
- Headset Connection 87
- Doorphone Interface 88
- External Paging 88
- Loud Ringing Bell 88
- Call Charge Data Display 90
- Call Logging 90
- CPC-EX Call Logging 93
- DASSII ISDN Features On DBS 96
- Dialling 100
- Speed Dial Memories 101
- Direct Dial In 101
- Calling Line Identification 102
- Confirming Call Charge Data 103
- Voice Announce Unit 105
- Recording A VAU Message 106
- Changing A VAU Message 106
- Checking a VAU message 107
- One Digit Dialling 108
- Cancelling A One-Digit Code 109
- Applications 110
- Operator Features 111
- Operator Busy Override 113
- Night Service 114
- Extension Feature Clear 115
- Setting Extension Lock Codes 116
- Changing Time And Date 122
- Call Traffic Monitoring 124
- Assigning Names To Extensions 127
- Storing Absence Messages 130
- Storing Trunk Names 131
- March 1997 Issue 24 144
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