Linetwo

3 clues
Office extension
Office phone button
What a call might come in on while you're on the phone
Similar answers:
Aaline
Aaronspelling
Abbeylincoln
Abelincoln
Abidelincoln
Abillinequity
Ablind
Abrahamlincoln
Abrahamlincolny
Abrahamslincoln
Abseiling
Absoluteceiling
Accowlings
Achorusline
Aclinal
Aclorisline
Actionline
Actorslinestcirtsnoc
Adayindublin
Addling