ATT System 25 Reference Manual

							Forwarding
Display: Reception of a forwarded call follows the standard format for a redirected call, with the call
type descriptor “f” in position 16 of Screen 2.
A forwarding display station receives abbreviated alert when a call is forwarded to an outside
number; the display is flashed on Screen 1 only. The new forwarding descriptor “F” appears in
position 1, followed by the digits of the outside number.
Screen 1F912325552365
Following: Either Following or Forwarding, but not both, can be active at a given time for a
particular PDC. Activation of one feature while the other is in effect overrides the other feature.
Forwarding a SLAC’s PDC causes all SLAC calls to be forwarded (PDC and “ø”).
Remote Access: Remote Access calls to a System 25 station that has Forwarding activated will
forward like any other incoming calls to the station.
Remote Access callers can activate Forwarding to outside numbers at System 25 stations. Refer to
“Remote Access Forwarding” earlier in this feature description.
Repertory Dialing: The forwarding activation and deactivation sequences (or portions of them) can
be stored on REP DIAL buttons.
Send All Calls: Forwarding supersedes Send All Calls. A call forwarded from a station with Send
All Calls activated will not go to Coverage or to bridging stations unless the call is not answered at
the forwarded-to station and returns. After returning, the call routes according to the Send All Calls
feature.
Station Hunting: Calls forwarded to a station in a hunt group will hunt and ring an idle station if the
forwarded-to station is busy. If all members of the group are busy and the forwarded-to station has
Call Waiting, the caller hears special ringback until the forwarded-to station becomes available to
answer the call.
A call to a forwarding station in a hunt group will first ring at the forwarded-to station. After an
administered number of rings, the call returns to the hunt group; if all members of the hunt group
are busy, the call continues to ring at the forwarded-to station until a hunt group member becomes
available.
Station Message Detail Recoding (SMDR): When a call is successfully forwarded to an outside
number, the call record will contain the forwarding station and forwarded-to station numbers if
Forwarding was activated by an inside station. If Forwarding was activated remotely, the SMDR call
record will contain the incoming trunk number, the PDC of the forwarding station, and the barrier
code number. For more details, see the “Station Message Detail Recoding” feature description.
Transfer: Calls transferred by TRANSFER button operation to a forwarding station will be given
normal Forwarding treatment.
November 19952-189 
						

							Features and Services
Trunk Groups, Loop Start: If System 25 uses Loop Start trunks, calls can be forwarded to remote
locations only if Trunk-to-Trunk Transfer has been administered for Loop Start trunks.
Administration Requirements
Voice Terminal Port:
l Allow this station to toward calls to outside locations? (yes or no; default = no).
2-190November 1995 
						

							Hands-Free Answer on Intercom (HFAI)
Hands-Free Answer on Intercom (HFAI)
Description
This feature allows the following voice terminals to provide hands-free answer service on
eligible incoming calls; each terminal must have Automatic Answer (AUTO ANS) assigned to
a flexible button.
l BIS (7305H03B, 7305H04C, 7313H01A, 7314H01A, 7316H01A, and 7317H01A) and
HFAI (7309H01A); these sets provide full service without requiring adjuncts.
l 10-Button (7303H01B), 34-Button (7305H01B), and 34-Button Deluxe (7305H02B)
equippedwith a Hands-FreeUnit (HFU—a S102A Speakerphone); these
arrangements provide full HFAI service.
l 5-Button (7302H01C) and the 10- and 34-Button sets listed above, not equipped with
an HFU; these arrangements allow callers to“voice announce” their calls, but the
terminal user must use the handset to reply.
Calls Eligible for Hands-Free Service:
l Inside calls (that is, calls from one System 25 set to another System 25 set using a
System Access, Loop, DSS, or Auto Intercom button).
l Calls transferred from another System 25 set using the Transfer feature. The
transferring station may pass both inside and outside calls in this way. Note that
calls transferred by the attendant are indistinguishable from calls transferred by any
other station.
Calls Not Eligible for Hands-Free Service:
l Incoming trunk calls (Personal Line, DID, DGC).
l Calls extended by an attendant.
BIS and HFAI Voice Terminals
LEDs next to the AUTO ANS button and the HFAI/Mic (HFAI set) or HFAI (BIS set) button
indicate whether the HFAI feature is enabled. The LEDs are turned on and off by pressing
the adjacent buttons.When both the AUTO ANS and HFAI LEDs are on, the set will auto-
answer eligible calls.
The HFAI LED will wink (on HFAI sets) or light steadily (BIS sets) during HFAI calls.
The sets response to HFAI-eligible calls depends on the status of the HFAI and AUTO ANS
buttons and LEDs, as follows:
l If both HFAI and AUTO-ANS LEDs are on:
2-191 
						

							FEATURES AND SERVICES
— The set generates a tone burst over its speaker to indicate an incoming call.
— The parties may converse.The called party can speak in a normal voice
toward the set. No other action by the called party is required.
— During the call, the called party can press the HFAI/Mic or MICROPHONE
button to mute the microphone temporarily and prevent the caller from
hearing. Pressing the button again turns the microphone on again.
— The HFAI/BIS user may pressthe SPEAKER (HFAI set) or the
SPEAKERPHONE (BIS set) button to end the call. If the calling party hangs
up first, this is not necessary.
l If only the AUTO ANS LED is on:
— The set generates a tone burst over its speaker to indicate an incoming call.
— The set’s speaker turns on and the set “answers” the call.
— Call setup is complete. However, the called party can hear, but not respond
to, the calling party. To respond, the user must lift the handset or press the
HFAI/Mic button on an HFAI set or press the MICROPHONE button on a BIS
set.
— The HFAI/BIS usermay press the SPEAKER (HFAI set) or the
SPEAKERPHONE (BIS set) button to end the call. If the calling party hangs
up first, this is not necessary.
l If only the HFAI LED (or neither LED) is on:
— The HFAI feature is disabled. The call answering procedure is the same as
for a standard MERLIN System set.
If, during a HFAI call, the user decides to pick up the handset, the HFAI/Mic or HFAI LED will
turn off. On a HFAI set, the user is not permitted to revert to hands-free operation.
(Pressing the HFAI button while using the handset will simply disable the HFAI feature for
subsequent calls.) A BIS set user may transfer a call from the handset to the speakerphone
by pressing the SPEAKERPHONE button and hanging up.
Voice Terminals with Speakerphone or Headset Adjuncts
These sets do not have a HFAI button. To turn on the HFAI feature the user simply presses
the AUTO ANS button; the green status LED lights.
After HFAI is activated, operation is exactly the same as for the BIS set except that the
SPEAKERPHONE and MICROPHONE buttons and LEDs are on the HFU.
Note, that the 502B Headset Adapter is required for HFAI operation with a headset (as is
usually desired in ACD operation).
2-192 
						

							Hands-Free Answer on Intercom (HFAI)
Voice Terminals without Speakerphone or Headset Adapters
The HFAI feature is activated by pressing the AUTO ANS button. A beep signal announces
an incoming call and the SPEAKER LED lights.A one-way talking link is established from
the caller to the terminal; the user can hear the caller but cannot converse. Lifting the
handset connects the user to the caller.
Considerations
The user of a HFAI equipped station should always deactivate the HFAI feature when leaving
the work area. If this is not done, incoming calls will be unintentionally “answered.”
Interactions
The following features interact with Hands-Free Answer on Intercom.
Bridging of System Access Buttons:If a station has HFAI activated, internal calls arriving at
this station on a System Access button will auto-answer.However, calls arriving at this
station on a Bridged Access button will ring according to the administered ring option and
will not auto-answer.
Coverage: When the HFAI feature is enabled at a set, calls eligible for HFAI service will not
receive coverage because the set will answer them whether the user is present or not.
However, if the attendant uses the Attendant Message Waiting feature to turn on the
Message indicator at the set, the HFAI feature will be disabled (the AUTO ANS LED turns
off), allowing subsequent calls to receive coverage.
Send All Calls: Activating Send All Calls will disable the HFAI feature (the AUTO ANS LED
turns off).
Administration Requirements
Voice Terminal Port:
l Assign AUTO ANS button.
A 22- or 34-button built-in speakerphone (BIS) voice terminal (with or without display) should
be translated as Type 308 only if a headset adapter will be used with it. Otherwise, such a
terminal should be translated as Type 305.
Hardware Requirements
This feature requires one of the voice terminals or combinations of terminal and adjuncts
listed in the Description.
2-193 
						

							FEATURES AND SERVICES
Headset Adapter Adjunct
Description
The headset adapter adjunct is an interface device for connecting a headset to an associated
voice terminal. A headset plugged into the adapter is activated by switches on the adapter.
The terminal operator has the choice of using either the handset or the headset for handling
calls. Turning the headset on and off is equivalent to lifting and hanging up the handset.
Considerations
Use of a headset allows a voice terminal operator to carry on conversations with both hands
free for writing, typing, etc. It is valuable adjunct for high traffic positions such as attendant
consoles.
Use of a headset does not affect normal voice terminal operations in any way.
Interactions
The following feature interacts with Headset Adapter Adjunct.
Speakerphone Adjunct:A voice terminal cannot have both a headset and a speakerphone.
These adjuncts plug into the same jack on the voice terminal.
Administration Requirements
A 22- or 34-button built-in speakerphone (BIS) voice terminal (with or without display) should
be translated as Type 308 only if a headset adapter will be used with it. Otherwise, such a
terminal should be translated as Type 305.
Hardware Requirements
500A/502B Headset Adapters:
The 500A adapter (Figure 2-29) is designed for use with the 12-Button (7203M) MET voice
terminal. The 502B adapter is designed for use with MERLIN System (7300H Series)
terminals (with the exception of the 5-Button and HFAI sets). Most standard commercial
headsets can be used with the adapters.The 502B adapter must be ordered if the user
requires HFAI operation on the headset (i.e., typical ACD/CMS operation).
Each adapter has an“ON/QUIET” button, an
“OFF” button, a green indicator lamp, a jack
for a single headset, and a modular keyed 8-wire jack.Each adapter is equipped with an
18-inch connecting cord. Optional cords are available in lengths of 4 and 14 feet.
2-194 
						

							Headset Adapter Adjunct
The 500A Headset Adapter is powered locally by a 2012D Transformer, which plugs into a
115V ac receptacle.Power from the transformer is applied to the voice terminal mounting
cord via a 400B2 adapter at the wall jack and conducted to the 500A on its connecting cord.
Refer to “Voice Terminal Adjunct Power Supplies” in Section 4 for additional information.
The 502B Headset Adapter does not require supplemental power, except when used with a
34-Button Deluxe, 22-Button BIS, 34-Button BIS, or BIS with Display voice terminal, or when
located more than 200 feet from the switch.
Detailed headset adapter connection information is provided in the following figures:
l Figure 2-30—Typical Headset Adapter to 7300H Series Voice Terminal Connections
Not Requiring Auxiliary Power
l Figure 2-31—Typical Headset Adapter to 7300H Series Voice Terminals Connections
Requiring Auxiliary Power
l Figure 2-32—Typical Headset Adapter Connections for 12-Button MET Sets
MET Headset Adapter:
Use of a headset with
Adapter (18 inch cord) ora 10-Button
a JS0180-4AMET voice terminal requires a JS0180-3A Headset
Headset Adapter (8 foot cord).
Figure 2-29.500A/502B Headset Adapter
2-195 
						

							FEATURES AND SERVICES
SYSTEM 25
CABINET
ZTN79PART OF
HYBRIDOCTOPUS CABLE
PART OF SIP
LINE CP
C2SIPW1C1VOICE
ADAPT.B1TERMINAL
T1
C8
502B
HEADSET
ADAPTER
LEGEND:
B1 -
TYPICAL-103A CONNECTING BLOCK*
C1- MODULAR CORD (D8W-87) - FURNISHED WITH SET
C2 - OCTOPUS CABLE (WP90780) - PEC 2720-05P
C8 - SPECIAL CORD -FURNISHED WITH ADJUNCTT1 -7300H SERIES VOICE TERMINAL (EXCEPT 34-BUTTON DELUXE
AND ALL SETS WITH BUILT-IN SPEAKERPHONE)
W1 -4-PAIR INSIDE WIRING CABLE*
*- FURNISHED BY INSTALLER
Figure 2-30.Typical Headset Adapter to 7300H Series Voice Terminal Connections Not
Requiring Auxiliary Power
2-196 
						

							Headset Adapter Adjunct
SYSTEM 25
CABINET
ZTN79
HYBRID
LINE CPPART OF
OCTOPUS CABLE
PART OF SIP
C2SIPW1B1Z400FC1VOICE
ADAPT.ADAPT.TERMINAL
T1
C7
C8
PWR.
SUPPLY
P1502B
HEADSET
ADAPTER
LEGEND:
B1 -
C1 -
C2 -
C8 -
T1 –
W1 –
C7 -
P1 -
Z400F -
*-
Figure 2-31.
TYPICAL-103A CONNECTING BLOCK*MODULAR CORD (D8U-87) - FURNISHED WITH SET
OCTOPUS CABLE (WP90780) - PEC 2720-05P
SPECIAL CORD -FURNISHED WITH ADJUNCT
7300H SERIES VOICE TERMINAL (34-BUTTON DELUXE
AND ALL SETS WITH BUILT-IN SPEAKERPHONE)
4-PAIR INSIDE WIRING CABLE*
MODULAR CORD (D6AP-87)
KS-22911 POWER SUPPLYPEC 62510
ADAPTER
FURNISHED BY INSTALLER
Typical Headset Adapter to 7300H Series Voice Terminal Connections
Requiring Auxiliary Power
2-197 
						

							FEATURES AND SERVICES
SYSTEM 25
CABINET
PART OF
OCTOPUSCABLETN735MET
LINE CPPART OF SIP
SIPC2W1C1MET SET
ADAPT.B1T1
C7C8
248B
500AADAPT.HEADSET
ADAPTER
2012D
LEGEND:
B1 -
C1 -
C2 -
C8 -
T1 -
W1 -
248B ADAPTER -
400B2 ADAPTER -
2012D TRANSFORMER -
C7 -
*-TRANS
TYPICAL-103A CONNECTING BLOCK*MODULAR CORD (D8W-87) - FURNISHED WITH SET
OCTOPUS CABLE (WP90780) - PEC 2720-05P
SPECIAL CORD -FURNISHED WITH ADJUNCT
7203M -12-BUTTON MET SET
4-PAIR INSIDE WIRING CABLE*
MODULARIZES 2012D SOURCE
POWER ADAPTER
PEC 21691
15-18V AC SOURCE
MODULAR CORD (D6AP-87)
FURNISHED BY INSTALLER
Figure 2-32.Typical Headset Adapter Connections For 12-Button MET Sets
2-198