Siemens optiPoint 400 - Manual (Page 51)

Making Calls – Convenience Functions
51
Step by Step
t
Replace the handset.
or
Select and confirm.
Trunk Flash
To activate ISDN-type services and features through the
network carrier’s analog trunks or those of other com-
munications platforms (such as "consultation hold"), you
must send a signal to the trunks before dialing the serv-
ice code or telephone number.
Precondition: You have set up an external connection.
Press the key. The LED lights up.
Select and confirm.
or
qie
Enter the code.
o
Enter the service code and/or telephone number.
Transfer?
If the connection between the two other parties
is not established within 45 seconds, the call
from the first part returns to you (recall).
Program/Service
* 51=Trunk flash?