4.1.2.8 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.
Conditions
• This feature complies with the following European Telecommunication Standard (ETS) specification:
– ETS 300 188 Three-Party (3PTY) supplementary service.
• The availability of this feature depends on the contract with the telephone company.
• This feature can be enabled or disabled on an ISDN port basis.
PC Programming Manual References
9.26 PBX Configuration—[1-1] Configuration—Slot—Port Property - BRI Port—Supplementary Service—
COLP, CLIR, COLR, CNIP, CONP, CNIR, CONR, CF (Rerouting), CT, CCBS, AOC-D, AOC-E, 3PTY
9.27 PBX Configuration
—[1-1] Configuration—Slot—Port Property - PRI Port—Supplementary Service—
COLP, CLIR, COLR, CNIP, CONP, CNIR, CONR, CF (Rerouting), CT, CCBS, AOC-D, AOC-E, E911, 3PTY
User Manual References
1.4.5 Multiple Party Conversation
396 Feature Guide
4.1.2 Integrated Services Digital Network (ISDN) Service Features