Telephone

Forms
Download of forms concerning your phone number or your phone book entry.  

Telephone system
Here you can find information about the telephone system at GSI, for instance a brief instruction for the use of your telephone. 

Phone book
Here you can call the interactive phone book of GSI resp. download an actual printed version of the phone book as PDF-File. 

Conference call
On this page you find instructions for making conference calls (in German only).