Samsung OfficeServ DS-5021D User Manual page 52

To make an external call with a speakerphone, follow the procedures below.
NOTE
If the LCR(Least Cost Routing) feature is enabled on the OfficeServ system, press the [LCR]
button or dial the LCR access code.
50
1 Press the [Speaker] button.
2 Press the trunk line or dial the trunk access code.
3 Dial the telephone number.
4 Finish the call, by pressing the [Speaker] button.
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