Three basic station instruments are offered, including five-, 10-, and 34-button models. All stations ... Each Merlin telephone instrument includes a speaker but no microphone. ... The Merlin offers a high quality of voice, especially in multiparty conference calls. Every party is clearly audible, even in six-way conference calls. ... While the switch architecture has remained basically the same except for the recent Meridian data bus enhancement, Northern continues to reduce the electricalanbsp;...
|Title||:||Tutorial, digital private branch exchanges (PBXs)|
|Author||:||Edwin R. Coover|
|Publisher||:||IEEE Computer Society - 1989|