Siemens 1190 User Manual

The COS Changeover feature authorizes the user to use 

a different system extension temporarily to make calls 

as if he was at his own extension but with a lower class 

of service. 

Press this key.  

>

:

Select and press to confirm.

>

:

  Enter the code for COS Changeover.

Enter the extension number for which you have autho-

rization (e.g., 11/101).

Enter the 4-digit password for the electronic lock (de-

fault is 0000).

Enter the code for accessing an external line.

Wait for a dial tone.

Enter the external number you want to call.

Wait for the call to be answered. Initiate conversation.

  Once the handset is on-hook, the extension can use its 

regular class of service.

The Data Protection feature prevents audio signals gen-

erated by the system from affecting data equipment 

connected to the extension, such as faxes, modems, In-

ternet connections or answering machines.

Press this key.  

[1] COS Changeover must be enabled in order for an extension to use 

another extension (see Main Configurations - COS Changeover in 
the Programming Manual).

Service Menu

[2] Data Protection cannot be activated if the extension is configured 

as an Overflow Extension or as an Attendant Console.

 

If the extension is a MSN Attendant console and activates this fea-
ture, external calls will be forwarded to an overflow extension.

Service Menu

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