Proximus forum 525 Guide

Forum™ 525/526
Mounting and Commissioning
Manual

Welcome to Proximus
Thank you for buying this Proximus product. Our products meet the highest
quality demands and are outstandingly designed.
The following instructions will guide you in the operation of your
Forum™ 525/526 and answer all important questions. Should you require
further assistance or information, please contact the person responsible for
your system or your retailer first.
Internet:
www.proximus.be/pabx
Forum™ 5000 and Forum™ 500
This user guide applies to the Forum™ 5000 and Forum™ 500 product
families.
●The Forum™ 500 product family comprises the Forum™ 523/524,
Forum™ 525/526 and Forum™ 550/560 communications systems.
●The Forum™ 5000 product family comprises the Forum™ 5500,
Forum™ 5004, Forum™ 5008 and Forum™ 5012 communications
systems.
If individual features differ on the systems, a reference is made in this user
guide.
We hope you enjoy using Forum™ 525/526.

1
Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Factory Settings on Delivery. . . . . . . . . . . . . . . . . . . . . . . . . 16
Telephony Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Authorisations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LAN Settings / Internet Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Update Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Upgrade Licence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Technical Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Updating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Installing Interface Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
V.24 and Doorstation Equipment Slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Slots for Additional Interface Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Available Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Positions of the Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Interface Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Forum 525/526 (5 Slots) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Port Assignment, Termination, Cable Lengths . . . . . . . . . . . . . . . . . . 37
S0Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Upn Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
a/b Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Actor / Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2
LAN Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DSL Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Connectible Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Internal/External S0Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Upn Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
a/b Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
COM Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
LAN Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
PRA Connector Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Mounting the Forum 526 Rack InfoCom System . . . . . . . 49
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Pinning of RJ 45 Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Brief Guide to Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Configuring the Forum 525/526. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Preparing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Starting the Web Console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Finishing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Saving and Loading the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Preconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Remote Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Codes for IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Receiving System Messages as E-Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Loading SW Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Resetting the System Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Basic Hardware Settings Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

3
Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Forum 525/526 in Computer Networks . . . . . . . . . . . . . . . . . . . . . . . 66
Introduction to TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Forum 525/526 in a Serverless LAN . . . . . . . . . . . . . . . . . . . . . . . . . . 68
DNS Name Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
RAS Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Forum 525/526 in a LAN with an IP-enabled Server . . . . . . . . . . . . 71
DNS Name Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
RAS Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Branch Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Useful Information on Internet Access . . . . . . . . . . . . . . . . . . . . . . . . .75
Costs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Using the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
E-Mail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Voice over IP (VoIP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
IP System Telephony. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
External SIP Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Internal SIP Telephony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Propagation Delay and Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Latency and Packet Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Voice Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Optimisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Call Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Useful Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
VoIP Profiles for SIP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Voice Activity Detection (VAD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Media Gateway (MGW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Software MGW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
MGW Interface Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

4
SIP Telephony. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
External SIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Internal SIP Subscribers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
SIP System Telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
SIP Entrance Intercom Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
VoIP System Telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Device Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
VoIP System Telephone Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
LAN DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Start Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Local Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Forum IPhone PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Upn DECT and DECTover IP®. . . . . . . . . . . . . . . . . . . . . . . . .118
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
DECT Base Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Dual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Synchronisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Setting up the WLAN Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Configuring for a Remote Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
PBX Cascading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Variants of PBX Cascading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Functionality of PBX Cascading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Putting a Cascaded PBX into Operation . . . . . . . . . . . . . . . . . . . . . . .131
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
PBX Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Point-to-Point Connection Technology . . . . . . . . . . . . . . . . . . . . . . . 134
Protocol: Q.SIG or DSS1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

5
Master/Slave. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
L1 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Point-to-Point Connection Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
Direct Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Connection via an Active Transmission System . . . . . . . . . . . . . . . . . . . . 137
Connection via the Public Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
IP Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Connection via Q.SIG.IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Connection via SIP Tie Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Bundles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Technical Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Telephony. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
E.164 conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Further Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Call Forwarding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Loop Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Virtual Call Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Hunt Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
External Call Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Information on the Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Busy Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
PIN Code Telephony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Switch authorisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Generating Your Own MoH Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

6
KDA Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Installing and Deinstalling the KDA Manager . . . . . . . . . . . . . . . . . . . . . 160
Starting the KDA Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Hunt Group Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
Setting Up Hunt Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Call Queue for a Comfort Hunt Group . . . . . . . . . . . . . . . . . . . . . . . . 165
Welcome Tracks for a Comfort Hunt Group. . . . . . . . . . . . . . . . . . . . 167
Forwarding Hunt Group Calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Last Group Member Logoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Configuring Music on Hold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Configuring Group Member Terminals . . . . . . . . . . . . . . . . . . . . . . . . .171
Configuring Hunt Group Call Function Keys. . . . . . . . . . . . . . . . . . . . . . . . 171
Enabling Operation Via “Forum CTI”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
Information on Potential Faults in Comfort Hunt Groups . . . . . . . 173
Particular Features of Hunt Group Calls . . . . . . . . . . . . . . . . . . . . . . 174
Team Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Explanation of Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
Team Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Examples of Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Executive/Secretary Team. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Three-member Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Unified Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181
Toggle Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182
Call Queue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Activation of Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Call Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Pickup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Hunt Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

7
Examples of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Enquiry Station for an Operator with Two System Telephones . . . . . 186
Group of Three Enquiry Stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Multi-Company Variant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Configuring the Multi-Company Variant . . . . . . . . . . . . . . . . . . . . . . .191
Configuring and Managing Companies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Assigning Users. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Assigning a Bundle/SIP Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Allocating Routing Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Configuring the Company Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Working with the Multi-Company Variant . . . . . . . . . . . . . . . . . . . . 194
Company Telephone Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Making Calls Between Companies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Billing Charges per Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Configuring the PC Software . . . . . . . . . . . . . . . . . . . . . . . 196
Browser for Forum CTI and Forum Hotel . . . . . . . . . . . . . . . . . . . . . 196
Synchronising the PC Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197
Application Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Remote Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
CSTA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Setting up TAPI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
LDAP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Address Queries using LDAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Querying External LDAP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
SNMP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Installing SNMP Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Configuring SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

8
Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . 219
General/Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Telephony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
PBX Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
DECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Forum Phone 51x/52x/53x: Extensions and
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227
Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Key Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Environmental Information . . . . . . . . . . . . . . . . . . . . . . . . . 234
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

About this Manual 9
About this Manual
This user guide is designed for the technician who will install the Forum 525/
526 and put it into operation. Usually this is the responsibility of your
Proximus agent, who will prepare the Forum 525/526 and hand over the
configured, operational system.
The information given
●about mounting the Forum 525/526
●about connecting and commissioning the terminals
●about installation and configuration of software and single components
are for these people only.
Please note:The Forum 525/526 may only be installed and serviced by
qualified Proximus personnel.
Users of the Forum 525/526 will find instructions and background
information in this manual concerning administrative tasks which occur in the
course of daily, routine operation (e.g. team configuration). In addition, there is
a list of frequently asked questions to help these users identify and eliminate
malfunctions.

10 Features
Features
The Forum 525/526 is a communications system for integrated voice and
data communication. The outstanding feature of this communications system
is its modular structure:
●Forum 525/526 is a system that can be tailored exactly to your communi-
cations requirements. Initially, the main module doesn’t carry any
telephony interfaces. They can be added by means of additional interface
cards. The main module provides five slots for different combinations of
interface cards.
●Additionally the Forum 525/526 offers two special slots:
– One slot to incorporate a V.24 interface card. This card provides a serial
port.
– One slot to incorporate doorstation equipment interface card.
Te l e p h o n y
The Forum 525/526 communications system is designed to be connected to
an ISDN basic access using the DSS1 protocol. System access (point-to-point)
and multi-terminal access (point-to-multipoint) are both supported. The two
forms of access can be configured in parallel.
For this purpose the Forum 525/526 with interface cards provides up to 12 S0
ports (switchable between internal/external). An overview of all possible
interface card combinations can be found under Forum 525/526 (5 Slots)
starting on page 34.
The Forum 525/526 complies with the regulations for telecommunications
equipment. The DSS1 protocol is implemented.
The firmware of the Forum 525/526 is designed for configuring up to
300 users.
You can connect the following devices to the Forum 525/526:
●analogue terminals
●Euro-ISDN terminals
●Proximus system telephones Forum Phone 516, Forum Phone 526 and
Forum Phone 536

Features 11
●Proximus system telephones Forum Phone 515, Forum Phone 525 and
Forum Phone 535
●Proximus Forum Base 500 base stations
●DECT handsets Forum Free (via Forum 500 base station)
●ISDN telephones (on the Upn port) Forum Phone 510
An S0port can be used by Euro-ISDN terminals working in accordance with
DSS1. A Upn port is suitable for the Forum Phone range of system telephones.
Forum 500 base stations can also be connected to the DECT-enabled Upn
ports on interface cards. An analogue port is used by standard analogue
devices.
If the CNIP (calling name identification presentation) feature is supported by
your network provider, the latter will show you the name of callers in addition
to their number for each incoming trunk call. The Forum 525/526 supports
the display of the name on system telephones. However, if you have created
an entry in the telephone book of the Forum 525/526 under the number of
the caller, this will be displayed instead.
The Forum 525/526 can be integrated into an existing network (LAN) and be
used by all workstations as an Internet access router and mail client.
Configuration and programming of the Forum 525/526 is performed by
means of a special Web browser (known as the “Web console”), which can be
run on a connected PC.
The Forum 525/526 can also be prepared in the service centre.
A PC can be connected via a retrofitted V.24 interface card (Forum 525 Card
serial interface) to the COM port for the purpose of configuring the system or
transferring connection data.
To connect the Forum 525/526 to existing company hardware, “actor” ports
(output) and “sensor” ports (input) can be provided by retrofitting a
doorstation interface card. For example, this can be used to operate a door
opener and a doorbell via the Forum 525/526 system (this requires
additional equipment).
Forum 525/526 enables you to use CTI (Computer Telephony Integration)
applications. The TAPI (Telephony Application Programming Interface) and
CSTA (Services for Computer Supported Telecommunications Applications)
standards are supported for the purpose of integrating CTI applications.

12 Features
Forum 525/526 also features an integrated browser-based CTI application,
the Forum CTI. The Forum CTI allow users to call up and use telephone
functions from their PCs.
Furthermore, the Forum CTI Touch web application is a web-based solution
available for controlling telephony functions with current smartphones.
Further telephony features
The installed memory card enables you to operate a digital voice memory and
voice information system. A memory card offers at least 60 minutes of
recording time. For more information, please refer to the user guides
“Forum Voicemail” and “Forum Auto Attendant”.
You can optimise your telephone communication by using the team functions
and the call-queuing function.
With an additional licence, the web application Forum Count can be used. This
web application enables you to register and store telephony connections and
evaluate the connections with user defined filters. Further information can be
found in the online help of the web console.
You can integrate external telephony applications via the extended CSTA
interface. The extended CSTA interface is licensable separately (see CSTA
Interface starting on page 209).
Networking
As your company’s requirements grow, the Forum 525/526 can be
networked with other telecom systems (see PBX Networking starting on
page 133). The Forum 525/526 can then operate as a sub-system or DECT
server. To operate the networked Forum 525/526 as a DECT server the
system’s Upn ports must be DECT-capable. It is also possible to create a
telecom system with several networked telecom installations.
Voice over IP (VoIP)
Forum 525/526 supports the connection of VoIP terminals, enabling the
company’s existing internal network infrastructure (LAN with 100 MBit/s) to
be used for telephony as well. VoIP system telephones of the
Forum IPhone 525 and Forum IPhone 535 types are available for this
purpose. These devices have the same functionality and support the same
features as the non IP-enabled system terminals.
For users wanting to use PC-supported telephony, IP system terminals are
available as separate licensable software versions (“Softphone”). You will find

Features 13
further information on this in the chapter on Voice over IP (VoIP) starting on
page 78.
VoIP with media g ateway card
Additional VoIP features can be used by installing a media gateway card with
the communications system Forum 525/526.
●SIP (internal): You can operate SIP system phones Forum IPhone 512 /
Forum IPhone 545, Forum IPhone 5010/5020/5025/5030/5040,
standard SIP telephones and SIP entrance intercom systems.
●SIP (external): You can use external SIP connections as “SIP trunk lines”.
Setting up and using external SIP connections is completely transparent
for telephone users, providing them with easy access to low-cost Internet
telephony and a fallback to normal ISDN connections in case of error or
busy lines. A Media Gateway card is required for SIP telephony.
●Q.SIG-IP and SIP tie line: Several communications systems can be
networked via IP connections using “Q.SIG IP”. Low-cost data connections
can be used to network the communications systems of branch offices
instead of ordinary permanent ISDN lines.
●DECTover IP®: DECT networking via VoIP is another possible option for
offices already extensively using VoIP telephony. The Radio Fixed Parts
(RFPs) are connected via network data connections, so they do not occupy
any Upn ports and can use existing network connections. With
DECTover IP, VoIP protocol data is changed into DECT-compatible voice
data direct on the RFPs. DECT-RFPs and DECTover IP-RFP can be used
together in combination in many cases; it is however not possible to switch
between RFPs using different technologies during a call.
Packet data in the D channel
Some business applications, for instance POS terminals, cash registers or
credit card terminals, require a permanent data connection over the X.25
packet data network. Packet data transfer through the ISDN D channel
(according to X.31 via SAPI 16) can also be established between several S0
interfaces of the Forum 525/526. Simultaneous connections are
distinguished by means of a TEI (Terminal Endpoint Identifier).
X.31 packet data can be forwarded between two S0interfaces (for instance an
internal and external S0interface). Equally, data can be forwarded (“routed”)
over permanent Q.SIG lines. Data can also be routed over an S2M interface. It
is possible to operate multiple terminals with the same TEI on different

14 Features
internal S0interfaces. A TEI mapping table allows these X.31 connections to
be routed to the same external S0interface.
The routing table for X.31 packet data is set in the Configurator under
Te l e p h o n y : Extended: X.31. Additional information can be found in the
Configurator online help files.
Internet access
It is possible to connect individual PCs to the Forum 525/526 via the internal
S0ports, or to connect an entire LAN to the Forum 525/526 via the Ethernet
port. These PCs can access the Internet via the Forum 525/526. If Internet
access is already available from an Internet service provider, this can be
configured in the Forum 525/526. If the client network is not IP-capable, the
Forum 525/526 can administer the IP configuration necessary for Internet
access. The Forum 525/526 has an integrated DHCP server and a DNS server,
which in this case take over IP address administration and name resolution for
the client PCs.
The Forum 525/526 enables Internet access for all connected PCs by means
of a common IP address. Only this is externally visible. The local IP addresses
of the client PCs are translated to the IP address of the Forum 525/526 by
network address translation (NAT). In this way the client PCs in the LAN
cannot be reached directly from the Internet. This protects them from direct
external attack. The LAN is additionally protected by the Forum 525/526
filter lists, which can be customised individually (firewall function).
Note: We recommend you to read through the explanations under
Useful Information on Internet Access starting on page 75.
E-mail
The Forum 525/526 has an integrated e-mail function that is able to use the
POP3, APOP or IMAP4 protocols to check the Internet service provider for
incoming mail. When configuring the Forum 525/526, e-mail account query
can be configured for every member of staff. The Forum 525/526 then
fetches the incoming e-mail headers (subjects) and senders from the mail
server at set intervals, and forwards them to users’ system terminal.
E-mail accounts for the sending e-mail can also can be configured for users.
E-mails can then, for example, be sent directly from the Forum CTI to other
users. In addition, users who have had a voicebox configured for themselves,
can let themselves be notified of new voicebox messages via e-mail.

Features 15
Important events and errors are kept by the Forum 525/526 in an internal log
book: the error store. To inform or alert the system administrators, entries in
the log book (system messages) can be sent via e-mail.
Further network features
You can offer staff the possibility of dialling into the LAN by means of RAS
access.
A LAN-to-LAN link can also be implemented by ISDN. In this way two
Forum 525/526s can connect their LANs by dial-in on demand.
You can query the internal phone book of the Forum 525/526
communications system via LDAP. It is also possible to integrate entries of an
external directory via LDAP. Furthermore, integration into a network
administration solution via SNMP is possible. For further information on the
various application interfaces, please refer to Application Interfaces starting
on page 199.
Glossary
Refer to the explanations in the glossary (supplied as a PDF file on the system
CD).

Telephony Basic Settings
16 Factory Settings on Delivery
Factory Settings on Delivery
The following basic settings and features are active on delivery. We
recommend that you configure the Forum 525/526 communications system
to suit your individual requirements before using it (see Configuration starting
on page 53).
Telephony Basic Settings
With the Forum 525/526 all ports (S0, Upn and a/b ports) are realised by
installing a specific combination of interface cards for this purpose. An
overview of available interface cards can be found in the “Interface
cards”chapter in the section Forum 525/526 (5 Slots) starting on page 34.
Note: The system generally requires the slots to be configured before
any interface can be commissioned.
●The Forum 525/526 is configured ready for use in Belgium.
●Analogue terminals: The dialling mode (IWV or MFV) is automatically
detected.
●All corded terminals ring if there are incoming external calls.
●The password for the “Administrator” user is empty.
●The system PIN, for remote programmable call diversion for example, is set
at “0000”.
Authorisations
The allocation of authorities regulates which functions terminals on
Forum 525/526 can use. These authorities are configured for so-called user
groups, to which users and their terminals are then assigned.
Three user groups are preset: “Administrators”, “Standard” and “Guests”.
“Administrators” can access all functions in Forum 525/526 and have
unlimited configuration rights. Users in the “Guests” group can not configure
Forum 525/526, may not make any external calls and can only use a limited
range of Forum 525/526 terminal functions. The “Standard” user group is
well suited as a starting point for creating user groups for normal users of the
system (e. g. the staff members of a company) because of its default settings.

Authorisations
Factory Settings on Delivery 17
Note: When the Forum 525/526 is commissioned, all connected
terminals are initially in the “Administrators” group. For more
details on the configuration of user groups, refer to the online
help in the chapter entitled “User manager”.
The following functions are delivered preset for user groups:
User group settings
Function / authorisation Standard Adminis-
trators
Guests
Service profile User Expert View
Applications
Costs - + -
Phone Book + + +
ForumCTI ++-
ForumCTI-Busylamp ++-
ForumCount ++-
ForumHotel ++-
ForumACDSV +++
ForumACDInfo +++
ForumACDAgent +++
ISPapplication ---
Courtesy Service off off off
Phone Book
UseLDAP +++
Usecentral +++
Edit central - + -
Useowncompany +++
Editowncompany ---
Editothercompanies ---
Entries (personal) 20 20 0

Authorisations
18 Factory Settings on Delivery
Dial in (outgoing)
External Inter-
national
Inter-
national
Incoming
only
Immediate external line seizure - - -
External line seizure over operator - - -
LCR ++-
DeactivateLCR ++-
LCR at call forwarding to extern - - -
VIPcall ++-
PINdial ---
Announcement + + -
Announcement accept + + +
Announcement with beep (periodic) + + +
Intercom ++-
Dialoutforotherphone ---
Instantconnection ++-
Callbackonbusy ++-
Multiple seizure at the parallel
terminal s
+++
Switch authorization - - -
Display phone number off (intern) - - -
Display phone number off (extern) - - -
Display phone number per
connection
++-
Dial in (incoming)
Pickupfromgroup ++-
Pickup selective + + -
User group settings
Function / authorisation Standard Adminis-
trators
Guests