1. Your PBX does not support mulipart calls. Contact your PBX reseller for upgrading.

2. Your PBX needs another command than R3 to connect more parties, read the table below. Note that the commands can differ due to settings in the PBX.

Brand
Model
Command
Notes
Aastra
BusinessPhone
F3

Avaya
IP Office
*47

Avaya
Integral 55
F4
Add-on conference
must be active
Ericsson
MD110
3

Euro
Generis
F63

Philips
Sopho IS3000
F
F*3 for new line
Samsung
Office Serv 500
46

Unify/Siemens
HiCom Office
*5

Unify/Siemens
HiPath
*3
or F*3 or *53
Vox
Novo
F4

NEC
SV8100/9100

Instructions