English ⇄ Russian

spend on the phone stresses
inf.	просидеть на телефоне (Washington Post; e.g., he spent much of Monday on the phone fielding calls from ... Alex_Odeychuk)
spend a period of time on the phone
inf.	сидеть на телефоне (he spent much of Monday on the phone fielding calls from ... Alex_Odeychuk)