Bell System 507 User manual

TABLE OF CONTENTS
Description of th e 507 Swit chb oard
Incoming Calls
Out going Calls Dialed by S
tat ion User __
Out going Calls Placed by PBX Attendant _
Call to An
oth er Sta tion With in the PBX System 10
All Conn ectin g P
ath s in Use __ 12
Tran sferring an Incoming Call _ 12
Recallin g the C
entr al Office Operator 13
Disconn ect Signals _ 13
Trunk Holding Keys __ 14
Night Connecti ons __ 16
Equipm ent Tr ouble __
Batt ery Suppl y Failur e
Ringing Power
Failur e _
18
18
18

Description ofthe 507 Switchboard
1. Supervisory Lamps
2.
Trunk Connecting Keys
3. Station Connecting Keys
4. Attendant's Talking Keys
5. Attendant's Key
Talking (operated up)
Night Service (operated down)
6. Station Keys
Connecting (operated up)
Ringing (operated down)
7. Station Line Lamps
8. Designation Strip
9. Instruction Plate
10. Trunk Line Lamps
11.
Trunk Connecting and Holding Keys
12. Buzzer Key
13. Attendant's Telephone

Incoming Calls
ANSWERING THE CALL
When a trunk lamp lights (1) :
•Remove
the handset of th e switchboard tel ephon e; at
th e sam e tim e
operat e an attendant's talkin g key (3)
to an idle conn
ecting path.
• Op erate a trunk conn ecting key (2) above the light ed
trunk signal to the same connecting path.
• Answer immediately with your firm name .
ESTABLISHING CONNECTION
While you are accepting and acknowledging the order, if
the called statio n is not busy:
• Op
erate the called station con necting key (4) to t he
path used to answer the call.
•
Ring the called station by operating downwa rd thc
ringing key (5 ) above th e called station desig nation.
Ring stead ily for about 2 seconds , pau se for about 5
seconds, and follow with a
nother 2-second ring.
• Keep the
station connect ing key operated and remain
on the conn ection unt il
the called stat ion answers.
• Resto re the att endant's ta lking kcy to its norm al
position and replace th e
hands et of the switchboard
telephone.

Outgoing Calls
Dialed by Station User
ANSWERING THE CALL
When a sta tion lamp li ghts:
•Remove the handset of the switchboard telep hone and
at the sam e tim e operate an attendant's ta lking key
(2) to an idle conn e
cting path "
•
Operate a connecting key (1) over the statio n signal to
the same conn ecting path.
• Answe r with an app ropriat e phrase.
ESTABLISHING CONNECTION
• Acknowledg e th e order and restor e th e attendant's
talking key (3) to norma lposition.
• Op
erate th e connect ing key (4) of th e highest nurn-
bered idle trunk to th e connecting path used to answ er
the call.
• Replace
the handset of the swit chboard telep hone .
Note: Th e at te nda nt 's talking key must be re stor ed be-
fore the
statio n user sta rts to dial as otherwise part of
the diali ng may not reach th e
cent ral officeequipment.

Outgoing Calls
Placed by PBX Attendant
ANSWERING THE CALL
When a sta tion lamp li ghts:
•Remove the handset of the switchboard telephone and
at the same time operate an attendant's talking key
(2) to an idle
connecting path.
• Operate a connecting key (1) over the station signal
to th e same connecting path.
• Answer with appropriate phrase.
ESTABLISHING CONNECTION
• Acknowledge the order and restore the station con-
ne
cting key (4) to normal.
• Operate the trunk connecting key (5) over the highest
number ed idle trunk to the connecting path to which
the att endant's talking key (3) is operated.
• Wait for dial tone , which indicates that the cent ra l
office equipment is
ready to receive your call. Then dial
th e
number.
If th e s tation user is holdin g th e line:
•
Re-operate the calling station key to the path to which
the trunk conne cting key is operated and restore the
attendant 's talking key (1) to normal position.
If the statio n user has hun g up :
•
Either ring him back and request that he hold the line,
or
remain on th e connection yourself until the called
party answers .