Sony 500 User Manual

If configured (contact your service personnel), you can 
use an external phone like an internal station  to set up 
an outgoing external connection via the system. You 
can also activate or deactivate the following system 
functions:

•

Reset services and functions, 
code #0 

•

Call forwarding, code 

*

1/#1 

•

Lock and unlock phone, 
code 

*

66/#66 

•

Save your PIN, 
code 

*

93 

•

Send a message, 
code 

*

68/#68 

•

Leave an advisory message, 
code 

*

69/#69 

•

Ringing group, code 

*

81/#81 

•

Group call, code 

*

85/#85 

•

Caller ID suppression, 
code 

*

86/#86 

•

Camp-on tone, code 

*

87/#87 

•

Open door, code 

*

•

Release door opener, code 

*

89/#89 

•

Control relays, code 

*

90/#90 

•

Do not disturb, code 

*

97/#97 

•

Ringer cutoff, code 

*

98/#98 

•

Dial using speed dial, code 

*

•

Associated service, code 

*

83 

Prerequisite: Your phone supports tone dialing (DTMF) 
or you can switch your phone to tone dialing. The phone 
is not connected to the system.

j

Establish a connection to the system. Enter the station 
number (contact your service personnel).

j

Wait for the continuous tone (if necessary, switch pho-
ne to tone dialing) and enter the internal number assig-
ned to you and the corresponding PIN.

(

Enter the code (only required if programmed in the sys-
tem).