Mike's PBX Cookbook

CLS Access Restrictions

Station class of service (CLS) trunk access restrictions, set in LD 10 (analog sets) and LD 11 (digital sets).

CLS ➤UNRCTD/CUNTLDSREFREFR1FR2
Incoming
Trunk Calls
YesYesYesYesVia Call
Modify #2
NoNo
Outgoing
Non-Toll
Trunk Calls
YesYesYesVia Attendant
- or -
UNR Station #1
Via UNR
Station #1
NoNo
Outgoing
Toll Trunk
(0 or 1+ on
COT or FEX)
YesVia
BARS/NARS
Via Attendant
- or -
Station #1
NoNo
To/From
Tie Trunk
YesYesYesYesYesYesNo
To/From
Internal
YesYesYesYesYesYesYes
BARS/NARS
TGAR=No
#3
Uses NCOS
only
Uses NCOS
only
Uses NCOS
& CLS
Uses NCOS
& CLS
Uses NCOS
& CLS
Uses NCOS
& CLS
Uses NCOS
& CLS
BARS/NARS
TGAR=Yes
#3
Uses NCOS
& TGAR
Uses NCOS
& TGAR
Uses NCOS,
CLS, & TGAR
Uses NCOS
CLS & TGAR
Uses NCOS
CLS & TGAR
Uses NCOS,
CLS & TGAR
Uses CLS
only

Access Restrictions:

  • UNR - Unrestricted
  • CTD - Conditionally Toll Denied *
  • CUN - Conditionally Unrestricted
  • TLD - Toll Denied
  • SRE - Semi-Restricted
  • FRE - Fully Restricted
  • FR1 - Fully Restricted 1
  • FR2 - Fully Restricted 2
Key
Direct Access
Indirect Access
No access

Notes:

  • #1 Call Modification: TRN, CONF, etc.
  • #2 Call Mod: TAFAS, Call Pickup, TRN
  • #3 LD 86: ESN, check TGAR (NO) YES
  • * CTD is default / TGAR=No is default