Some Class of Service (CLS) codes can be configured to [A]llow or [D]eny by changing the last letter of the code appropriately. For Example, CNDA allows Calling Party Name Display, while CNDD denies display of the Calling Party’s Name.
- AAD :: Automatic Answerback Denied
- ABDD :: Abandoned Call Record and time to answer Denied
- ADD :: Automatic Digital Display (default)
- AHD :: Automatic Hold Denied
- ARHD :: Audible Reminder of Held Call Denied
- ASCD :: Alarm Security Denied
- AUTU :: Unrestricted Authorization code Class of Service
- BFED :: Boss Secretary Feature Enhancement Denied
- BUZZ :: Buzz Allowed
- CCSD :: Controlled Class of Service Denied
- CDCA :: Conferee Display Count Allowed
- CDMD :: Denies external station activity records to be generated for the set
- CFHD :: Call Forward Hunt Override Denied
- CFTD :: Call Forward By Call Type Denied
- CFXD :: Call Forward All Calls to external DN Denied
- CLBD :: Calling Party Number and Name per-line Blocking Denied
- CLTD :: Network Call Trace from this telephone Denied
- CMSD :: Command and Status Link Denied
- CNDA :: Call Party Name Display Allowed
- CNID :: Call Number Information Denied
- CPFA :: Forced Camp-On From another set Allowed
- CPTA :: Forced Camp-On To another set Allowed
- CRPD :: Corporate Directory Denied
- CTD :: Conditionally Toll Denied (default)
- DAPA :: Display Access Prefix Allowed
- DDGA :: DN Display on other set Allowed
- DDV :: Data Port Verification Denied
- DNDA :: Dialed Name Display Allowed
- DPUA :: DN PickUp Allowed
- DRDD :: Distinctive Ringing by Directory number Denied
- DRG1 :: High fast tone 667Hz/500Hz, warble rate 10.4Hz
- DSX :: Data Service access or IS Servers TN Denied
- EXR0 :: Executive Distinctive Ringing Off
- FBD :: Call Forward Busy Denied
- FICD :: Forward Intercom Calls Denied
- FITD :: Flexible Incoming Tones Denied
- FLXD :: Flexible Voice/Data Denied
- FND :: Call Forward No Answer Denied (FNA for non 0-out phones)
- FTTC :: Flexible Trunk-to-Trunk Connections Conditional
- GPUD :: Group Pickup Denied
- GRLD :: Group Listening Denied
- HFA :: Hands Free Allowed
- HTA :: Hunting Allowed
- ICDA :: Internal Call Detail Recording Allowed
- IMD :: Integrated Messaging Service Attendant Denied
- IRA :: Incoming Ringing Line Preference Allowed
- LNA :: Last Number Redial Allowed
- LPR :: Low Priority Station
- MCBN :: Set linked to non MICB line card
- MCTD :: Malicious Call Trace Denied
- MRD :: Message Registration Denied
- MSID :: Make Set Busy Improvement Denied
- MTD :: Maintenance Telephone Denied
- MWA :: Message Waiting Allowed
- NAID :: No Answer Indication Denied
- NAMA :: Name Display on other set Allowed
- NID :: Non-Ringing Incoming Line Preference Denied
- OLD :: Outgoing Line Preference Denied
- POD :: Privacy Override Denied
- PUA :: Call Pickup Allowed
- RBDD :: Redirection By Day Denied
- RBHD :: Redirection By Holiday Denied
- RCBD :: Recall To Boss Denied
- RMMD :: Remote Monitoring of Messages Denied
- RTDD :: Call Redirection by Time of Day Denied
- SFD :: Second level CFNA Denied
- SMWD :: Extended Message Waiting Indication Denied
- STSD :: Set-To-Set Messaging Denied
- SWD :: Station-to-station Call Waiting Denied
- ULAD :: Deny access to Set Based Administration
- USRD :: Meridian 911 position denied
- VCE :: Voice Terminal
- VMD :: Server Voice Messaging Denied
- WTA :: Warning Tone Allowed
- XHD :: Exclusive Hold Denied