Service Description & ReferenceCalling Line IdentificationPresentation (CLIP)Sends the caller’s telephone number to the network when makinga call. The called party can see the number on his telephonedisplay before answering the call.® 1.21.1.2 Calling/Connected Line Identification Presentation(CLIP/COLP)Connected LineIdentification Presentation(COLP)Sends the telephone number of the answered party to the networkwhen answering a call. The caller can see the number on histelephone display when the line is connected.® 1.21.1.2 Calling/Connected Line Identification Presentation(CLIP/COLP)Calling Line IdentificationRestriction (CLIR)Prevents the caller’s CLI being presented to the called party by thecaller.® 1.21.1.2 Calling/Connected Line Identification Presentation(CLIP/COLP)Connected LineIdentification Restriction(COLR)Prevents COLP being sent by the answered party.® 1.21.1.2 Calling/Connected Line Identification Presentation(CLIP/COLP)Subaddressing (SUB) You may add digits after the telephone number. These digits willbe passed to ISDN terminal device.User-to-user SignallingType 1 (UUS-1)Transmits a specified volume of the data through the D channelbetween the ISDN terminal devices of different PBXs using UUStypes 1.Advice of Charge (AOC) The PBX can receive the call charge information on ISDN linesfrom the telephone company.® 1.21.1.3 Advice of Charge (AOC)Call Forwarding (CF)—byISDNForwards an incoming call to another outside party using the ISDNservice of the telephone company.® 1.21.1.4 Call Forwarding (CF)—by ISDN (P-MP)® 1.21.1.5 Call Forwarding (CF)—by ISDN (P-P)Call Hold (HOLD)—by ISDN Puts one ISDN call on hold.® 1.21.1.6 Call Hold (HOLD)—by ISDNCall Transfer (CT)—by ISDN Transfers an ISDN call to an outside party. Call Transfer withAnnouncement and Call Transfer without Announcement areavailable.® 1.21.1.7 Call Transfer (CT)—by ISDNThree-party Conference(3PTY)—by ISDNEstablishes a three-party conference call using the ISDN serviceof the telephone company.® 1.21.1.8 Three-party Conference (3PTY)—by ISDN208 Feature Guide1.21.1 Integrated Services Digital Network (ISDN)
