Siemens 600 Series - Manual (Page 94)

3–30 ROLMphone 300/600 User Guide
One-Way Speaker Call
The One-Way Speaker Call feature lets you make a
one-way call to the speaker of another phone. If the
other party does not have a speakerphone, they must
pick up the handset to answer.
Note
One-Way Speaker Call is only available on CBX
Release 9006.3 and higher.
To make a one-
way speaker call ➩ Press the One-Way Speaker Call (SPK1WAY)
key.
➩ Dial the extension.
You will hear the confirmation tone. The other
party will hear a double beep.
OR
➩ Get a dial tone.
➩ Dial # 8 1.
You will hear the confirmation tone, followed
by a dial tone.
➩ Dial the extension.
You will hear a confirmation tone. The other
party will hear a double beep.
➩ Begin speaking. The other party must pick up
the handset to answer and will hear single beeps
periodically until they do or until you hang up.