Telephoning Making Calls from the Telephone Book74Door Call ForwardingYou can forward calls signalled from the doorbell to another (internal or external)call number, a so-called “pharmacy line”. This is done through the Callforwarding menu (see the section entitled MenuCard “Call Forwarding”starting on page 102).Call DurationAll door calls are automatically terminated after a specific period has expired. Thisensures that forwarded door calls do not unintentionally lead to continuous calls(e. g. to a mailbox).Your system administrator can configure the period in the OpenCom 100/OpenCom X300 from 30 to 300 seconds. Ask him what the current time value is.2.7 Making Calls from the Telephone Book2.7.1 The Telephone BookApproximately 2,000 entries can be saved in your communications system’s tele-phone book.This number includes the centrally administered telephone book, the personalentries of all subscribers, and, provided you are using the multi-company versionof the OpenCom 100/OpenCom X300, the entries in the companies’ telephonebooks.How many entries you can save in your personal telephone book is determined byyour system administrator when configuring the OpenCom 100/OpenCom X300.The personal entries are automatically sorted into the comprehensive register, butcan only be viewed on your telephone. (However, the system administrator or aperson with the relevant authorisation can delete your telephone book com-pletely.)For instructions on managing the telephone book, refer to the section entitledMenuCard “Phone Book” starting on page 113.
