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1.20 Integrated Services Digital Network (ISDN) Service Features
194 Feature Guide
1.20.1.7 Call Transfer (CT)—by ISDN
Description
An ISDN call can be transferred to an outside party using the ISDN service of the telephone
company, instead of the PBX feature, without occupying a second ISDN line.
This feature complies with the following European Telecommunication Standard (ETS)
specifications: ETS 300 369 Explicit Call Transfer (ECT) supplementary service.
Conditions
• The availability of this feature is dependent on the contract with the telephone company.
• This feature can be enabled or disabled on an ISDN port basis.
• If an ISDN port is in P-P configuration, this feature can be used only when the network
supports the "explicit linkage" option.
• Call Transfer with Announcement and Call Transfer without Announcement is possible. (
1.11.1 Call Transfer)
• The call charges after completing this feature will not be recorded by the PBX.
User Manual References
User Manual
1.4.1 Transferring a Call (Call Transfer)