User guide

3
General
Supported ISDN Features
• Call waiting
• Call forwarding ("immediately," "on busy" and "after a specified time")
• 3-party conference (two 3-party conferences can take place simultaneously)
• Enquiry calls
• Callback on busy (CCBS)
• Callback on no reply (CCNR)
• Toggling
• Multiple subscriber numbers (on a multi-terminal ISDN connection)
• Calling number restriction (CLIR)
• Restrict display of your number on called subscriber’s device (COLR)
• Advice of charge (AOCD/AOCE)
• Explicit external call transfer (ECT)
• Identification of malicious callers (MCID)
• Visual T-NetBox message-waiting indicator (MWI)
Please note:
Certain features must first be ordered from your telephone network provider before you
can use them.