Three-Party Conference (3Pty)-By Isdn - Panasonic KX-TDA100 Features Manual

1.20.1.8 Three-party Conference (3PTY)—by ISDN
Description
During a conversation using an ISDN line, an extension user can add another party and
establish a three-party conference call using the ISDN service of the telephone company,
instead of the PBX feature.
This feature complies with the following European Telecommunication Standard (ETS)
specifications: ETS 300 188 Three-Party (3PTY) supplementary service.
Conditions
• The availability of this feature is depending on the contract with the telephone company.
• This feature can be enabled or disabled on an ISDN port basis.
User Manual References
User Manual
1.4.5 Multiple Party Conversation
1.20 Integrated Services Digital Network (ISDN) Service Features
Feature Guide 195