4.1.1 SIP (Session Initiation Protocol) Trunk .........................................................................3364.1.2 Integrated Services Digital Network (ISDN) Service Features .....................................3384.1.2.1 Integrated Services Digital Network (ISDN)—SUMMARY ........................................3384.1.2.2 Calling/Connected Line Identification Presentation (CLIP/COLP) .............................3424.1.2.3 Advice of Charge (AOC) ............................................................................................3454.1.2.4 Call Forwarding (CF)—by ISDN (P-MP) ....................................................................3464.1.2.5 Call Forwarding (CF)—by ISDN (P-P) .......................................................................3484.1.2.6 Call Hold (HOLD)—by ISDN ......................................................................................3504.1.2.7 Call Transfer (CT)—by ISDN .....................................................................................3514.1.2.8 Three-party Conference (3PTY)—by ISDN ...............................................................3524.1.2.9 Malicious Call Identification (MCID) ...........................................................................3534.1.2.10 Completion of Calls to Busy Subscriber (CCBS) .......................................................3544.1.2.11 ISDN Service Access by Keypad Protocol ................................................................3554.2 One-look Networking ....................................................................................................3564.2.1 One-look Networking Overview ....................................................................................3564.2.2 Network Type Comparison ...........................................................................................3614.2.3 One-look Networking Survivability ................................................................................3634.2.3.1 Backup Master Mode and Isolated Mode ..................................................................3644.2.3.2 Automatic Rerouting to Secondary PBX ....................................................................3684.2.3.3 UM Group Failover ....................................................................................................3714.3 Private Network Features .............................................................................................3724.3.1 TIE Line Service ...........................................................................................................3724.3.1.1 Making a TIE Line Call ..............................................................................................3734.3.1.2 TIE Line and Trunk Connection .................................................................................3754.3.1.3 TIE Line Programming ...............................................................................................3884.3.1.4 Common Extension Numbering for 2 PBXs ..............................................................3974.3.2 Voice over Internet Protocol (VoIP) Network ................................................................3984.3.2.1 Gateway Groups ........................................................................................................4024.3.2.2 Common Extension Numbering for Multiple PBXs ....................................................4034.3.2.3 Call Distribution Port Group .......................................................................................4044.3.3 ISDN Virtual Private Network (ISDN-VPN) ...................................................................4064.3.4 QSIG Standard Features ..............................................................................................4084.3.4.1 QSIG Standard Features—SUMMARY .....................................................................4084.3.4.2 Calling/Connected Line Identification Presentation (CLIP/COLP) and Calling/ConnectedName Identification Presentation (CNIP/CONP)—by QSIG ......................................4104.3.4.3 Call Forwarding (CF)—by QSIG ................................................................................4124.3.4.4 Call Transfer (CT)—by QSIG ....................................................................................4144.3.4.5 Completion of Calls to Busy Subscriber (CCBS)—by QSIG .....................................4164.3.5 QSIG Enhanced Features ............................................................................................4174.3.5.1 Network Direct Station Selection (NDSS) ..................................................................4204.3.5.2 Centralised Voice Mail ...............................................................................................4254.3.6 Network ICD Group ......................................................................................................4304.3.6.1 PS Roaming by Network ICD Group .........................................................................4325 System Configuration and Administration Features ........................4355.1 System Configuration—System ..................................................................................4365.1.1 Class of Service (COS) ................................................................................................4365.1.2 Group ...........................................................................................................................4385.1.3 Tenant Service .............................................................................................................4435.1.4 Time Service ................................................................................................................4475.1.5 Operator Features ........................................................................................................4515.1.6 Manager Features ........................................................................................................4525.2 System Configuration—Extensions ............................................................................4545.2.1 IP Proprietary Telephone (IP-PT) .................................................................................4545.2.2 SIP (Session Initiation Protocol) Extension ..................................................................45612 Feature GuideTable of Contents
