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SSxDSL-5M
CFB: Call Forwarding Busy allows calls to be forwarded to a speci-
fied number only when the subscriber’s number is busy.
CFNR: Call Forwarding No Reply allows calls to be forwarded to
a specified number only when the subscriber (called party) does
not pick up the line in a specified amount of time.
CFU: Call Forwarding Unconditional diverts a received call to a
specified different number.
CLIP: Calling Line Identification Presentation presents the Calling
Party Number to the called user.
CLIR: Calling Line Identification Restriction prevents the Calling
Party Number from showing to the called user.
COLP: Connected Line Identification Presentation allows the
answering party’s number to be conveyed to the calling party.
COLR: Connected Line Identification Restriction allows the called
subscriber to stop COLP from operating.
CUG: Closed User Group forms groups with restricted access
where members may be restricted from making calls outside or
receiving calls from outside the group.
HOLD: Call Hold allows the user to interrupt a call, then reestablish
it later. Interruption frees the associated B-channel.
MCID: Malicious Call Identification allows the called party, on a per
call basis, to request the caller to transmit their phone number, the
number they are calling, and the date and time of the call.
MSN: Multiple Subscriber Number allows multiple full numbers to
be assigned to one BRI line.
SUB: Sub Address is an additional number that is added to an
incoming call to specify an extension.
TP: Terminal Portability is the ability to suspend and reconnect a
call; for example, to move a phone from one plug to another.
UUS: User to User Signalling allows a user to send an Informa-
tion message in the Setup, Alerting, or Connect message on the
D-channel, without connecting the call; the message shows on
the ISDN phone display.
