Telephone Features: Held Calls, Conference Calls, Call Forwarding,
Telephone Privacy/Caller ID
Note: If you have purchased your own telephone, you may
have a "Talk" or flash button that you use instead of
the switch hook. However, since these are not standard phones at
MIT, we cannot guarantee that these buttons will work.
Analog/Student Telephone Features
| To... |
Do this... |
| Put a call on hold |
Press switch hook. At dial tone, press 77. Don't hang up.
|
| Return to a held call |
Hang up. Phone rings; answer and resume call. |
| Put a call on hold and place another call |
Press switch hook. At dial tone, press 77. At second dial
tone, enter phone number. |
| Alternate between two held calls |
Press switch hook. At dial tone, press 77. You are returned
to held call. |
| Transfer a call within MIT |
Press switch hook. At dial tone, enter MIT number. When answered,
announce transfer and hang up. |
| Set up a three-way conference call |
Place the first call. After the call is answered, press the
switch hook. At dial tone, place the second call. After the
second call is answered, press the switchhook again. All three
parties are connected. |
| Prevent phone number from being displayed on
a digital telephone |
Press 65. At second dial tone, enter phone number. Digital
phone display shows call as "Private Number." |
| Answer a call pick-up group phone |
When you hear a phone ring in your call pickup group, lift
the receiver on your phone and press 61 to connect to the call.
|
Call Waiting
[Analog Telephones only]
| To... |
Do this... |
| Use call waiting |
Three short beeps signal when a second call comes
in. To answer the second call, press the switchhook and press
77. This puts the first call on hold and connects you
to the waiting call. To alternate between the two calls, press
the switchhook and press 77.
To deactivate call waiting before placing a call (so you won't
be interrupted), lift the receiver and press 69. At the
second dial tone, place your outgoing call. Call waiting is
restored when you hang up. |
ISDN Digital Telephone
Features
|
To...
|
Do this...
|
| Put a call on hold |
Press the Hold button. |
| Return to a held call |
Press the call button with the flashing green
light. |
| Put a call on hold and place another
call |
Press the Hold button. Press an unused call button.
At the dial tone, enter the number. |
| Alternate between two held calls
|
Press the Hold button. Press the call button for
the held call. |
| Transfer a call within MIT |
Press the Transfer button. At the dial tone, enter
the five-digit MIT extension to which you are transferring the
call. When answered, announce the transfer, press the Transfer
button again and hang up. |
| Set up a three-way conference call
|
Place the first call. After the call is answered,
press the Conference button. At the dial tone, place the second
call. After the second call is answered, press the Conference
button again. All three parties are connected. |
| Prevent phone number from being displayed
on a digital telephone |
Press 65. At second dial tone, enter the five-digit
MIT extension. Digital phone display shows call as "Private
Number." |
| Answer a call pickup group phone
|
When you hear a phone ring in your call pickup
group, lift the receiver on your phone and press the Call Pickup
button to connect the call. |
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Call Forwarding
[Analog and Digital Telephones]
Call Forwarding to an MIT Telephone
|
To...
|
Do This...
|
| Forward all calls |
Press 72. At dial tone, enter MIT number to which
calls will be forwarded. Listen for confirmation tone. Hang
up. |
| Cancel forwarding of all calls |
Press 73. Listen for confirmation tone. Hang up.
|
| Forward incoming calls on busy |
Press 74. At dial tone, enter MIT number. Listen
for confirmation tone. Hang up. |
| Cancel forwarding on busy |
Press 75. Listen for confirmation tone. Hang up.
|
| Forward unanswered calls after five rings |
Press 78. At dial tone, enter MIT number. Listen
for confirmation tone. Hang up. |
| Cancel forwarding of unanswered calls |
Press 79. Listen for confirmation tone. Hang up.
|
| Change number of rings before forwarding |
Press 68 plus two digits from 01 to 60 for number
of seconds the telephone rings before forwarding. One ring is
approximately four seconds. Listen for confirmation tone. Hang
up. |
Call Forwarding to an Off Campus Telephone
Note: Only Faculty/Staff phones that can call off
campus (Classes A, B1, B2) can be forwarded to an off campus number.
The only condition available is the forwarding of all calls.
|
To... |
Do This... |
| Forward all calls to an off campus number
|
Get dial tone. Press 72 76. Enter off campus number
to which calls will be forwarded; include the area code, if
needed. Listen for confirmation tone of two beeps, followed
by the dial tone. Hang up. |
| Cancel forwarding of all calls |
Get the dial tone. Press 73. Listen for confirmation
tone of two beeps, followed by the dial tone. Hang up. |
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Telephone
Privacy [Analog and Digital Telephones]
The MIT phone system allows you to set 3 types of
Privacy Calling (i.e., suppressing caller ID information) on a specific
call; to suppress caller ID information for all calls from your
phone, send email to telecom-csr@mit.edu.
If you are making a call, most MIT business phones
lines are set up to transmit both your Calling Number and Calling
Name to MIT phones that can display this information. Only Calling
Number is transmitted on calls placed outside MIT. What is actually
displayed on phones outside MIT will vary, based on the called party’s
service.
If you are receiving a call from another MIT phone,
MIT phones with displays will typically show both the Calling Number
and the Calling Name (last name, first name, limited to
a total of 12 characters).
To suppress your name on a specific call:
Dial 64, then, after the dial tone, the number you
want (e.g., a 5-digit MIT extension, or 9-1-areacode–number).
An MIT phone will display the phone number you are calling from,
and ‘Private Name’.
To suppress your phone number on a specific
call:
Dial 65, then, after the dial tone, the number you
want (e.g., a 5-digit MIT extension, or 9-1-areacode–number).
An MIT phone will display ‘Private Number, and the name associated
with that phone number.
To suppress both your name and phone number:
Dial 83, then, after the dial tone, the number you
want (e.g., a 5-digit MIT extension, or 9-1-areacode–number).
An MIT phone will display ‘Private’.
If your name is displayed incorrectly, or you want
your name or number suppressed for all calls, please email telecom-csr@mit.edu.
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