Siemens HiPath 500 User Manual page 57

Step by Step
j
Wait for the dial tone and enter the code for example,
97 for Do not disturb on. If necessary, make further
*
entries; refer also to the user guide for dial pulse/DTMF
phones.
or
j
Dial the external number.
You can only perform one function/establish one
outgoing connection at a time.
The connection is cleared as soon as the function
is successfully activated.
In the case of an external-external call, the con-
nection is cleared as soon as one of the call part-
ners hangs up.
More functions/services
57