Ericsson businessphone 250 User Manual page 66

Other Useful Facilities
Doorphone
66
Doorphone
The doorphone is used to monitor the admission to your
company, i.e you can open the doorlock from your phone.
Answering doorphone calls
Press (pre-programmed)
You will be in speech connection with the calling party.
Opening of the doorlock
After you have answered the doorphone, you can open the door
by dialling the door-opener's directory number.
Dial the door-opener´s directory number
Please ask your system administrator for the number.
Direct Inward System Access (DISA)
If you are working externally and you have the need to make
business calls, call your company and use the company PBX
to make an external call to the desired party. You just pay the
costs for the phone call to your company. The other costs will
automatically be placed on your extension number or on a
special project.
Note: To activate this function, you have to change the
default password from "0000" to a personal one. Which
code to use and how to change it, see section "Select
password".
During the procedure you will be prompted for your password.
Use the quick reference card at the beginning of the guide to
remember these specific numbers.
Dial the public number of your company
followed by the DISA number
Ask the system administrator for the defined DISA number.
Dial the external number
BusinessPhone - Operator´s Console