KEY

TYPE

DESCRIPTION

0 thru 5

SCR

Single Call Ringing

0 thru 5

MCR

Multiple Call Ringing

0 thru 5

DIG

Dial Intercom Group

0 thru 5

PVR

Private Line Ringing

0 thru 5

COS

Controlled Class of Service

6 thru 16

NUL

Reserved for future development

17

SCR

Second appearance of data DN (if CLS = DTA)

18

SIG

Manual Signaling (Buzz)

19

NUL

Reserved for future development

20

MWK

Message Waiting

21

SCU

Speed Call User

21

SCC

Speed Call Controller

21

SSU

System Speed Call User

21

SSC

System Speed Call Controller

22

CFW

Call Forward All Calls

23

A06

Conference 6

24

CWT

Call Waiting

25

CHG

Charge Account

26

TRN

Call Transfer

27

RGA

Ring Again

28

PRS

Privacy Release

29

NUL

Reserved for future development

30

MSB

Make Set Busy

31

PRK

Call Park

32

CPN

Calling Party Number

33

ARC

Attendant Recall

34

OVR

Override

35

AAK

Automatic Answerback

36

DSP

Display