Lucent Technologies MERLIN Plus Release 2 System Manual page 118

SPEAKERPHONE
PERFORMANCE TIPS
4-10 Handling Calls
For optimal use of the speakerphone on the BIS, HFAI, or SP voice terminals,
follow these guidelines:
Place the voice terminal in an area with low background noise.
Room acoustics and background noise may affect the proper operation of
your voice terminal's speakerphone. High background noise is caused by
loud voices and loud electronic devices (radios, typewriters, office
equipment, etc.).
Keep the area under and next to the microphone free of books and papers.
Let one person talk at a time. When both parties speak at the same time,
transmission can be broken.
Always face your terminal when talking.
Place your voice terminal at least six inches away from the edge of the desk
or table upon which it rests.