8 three-party conference (3pty)—by isdn, 8 three-party, Conference (3pty)—by isdn) – Peerless Industries KX-TDA15 User Manual
Page 195: Description, Conditions, User manual references
1.20 Integrated Services Digital Network (ISDN) Service Features
Feature Guide
195
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