Telephoning Making External/Internal Calls572.3.4 Using Destination Keys to Make Calls2.3.5 Using Routes to Make CallsThe OpenCom 100/OpenCom X300 sets up calls to the desired subscribers eitherautomatically or via specific routes. Your system administrator configures theseroutes in the OpenCom 100/OpenCom X300 and specifies how each route isseized. To manually seize a specific route for a call, you dial the routing code beforedialling the (internal or external) telephone number. Making calls via specificroutes enables you to contact subscribers in the branches of a large companynetwork, for example. You can also use a manually-entered routing code to recordyour call-charge data for private and business external calls separately.The default route “External line” is always present and cannot be deleted. Auto-matic line seizure uses the OpenCom 100/OpenCom X300 line seizure code digitfor the default route.For information on the current routes and their codes, please contact your systemadministrator.and/orK Press the headset key (Headset operation requires that theheadset is switched on, see page 108).Z Dial the internal call number.g You can assign telephone numbers to programmable keysand save them. To dial a programmed number, simply pressthe destination key. Your call key is seized.H Z Enter the routing code and dial the call number.For enquiry calls:G R Z Enter the routing code and dial the call number.
