Title: disappointing
Review: The mute button has to be held down continuously and doesn't work as expected. When another extension for line 2 is in use, you are unable to pick up line 2 on this phone. When a line 2 extension is in use line 1 and line 2 on this phone both become line 1. Also the hold button does not always work either. All in all it's not very usable or reliable phone.
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