He/She hasn't returned to the office yet.
He/She hasn't arrived at the office yet.
Sorry, he hasn't come back yet. Would you like to leave a message and ask him to call you back?May I take the message? I will tell him to call you back shortly
He is not at his desk/ on his seat
He/she has just stepped out.
He/She is away from his desk/office at the moment.He is out of desk at this moment.
He/She is temporarily unavailable.
He/ she is not coming he/ she hasn't come back yet.
He/She is temporarily unavailable.
He/ she is not coming he/ she hasn't come back yet.
He is not available right now
He is not free now
He is away from his desk/office at this moment
He is engaged on the phone
He is talking by phone
I will tell him you have called him after he finish his talking
He is on the other line
I tell him phone to you after he off the line
He has just stepped out
He/ she just walked out.He is out for lunch.He just went out
He just went out for lunch
He is out for lunch
He is meeting someone
He is in/at a meeting
He is out of town and will return in XX days
He/ she is absent today
He is on (sick/annual/causal) leave
He is not coming
He is out of desk at this momentHe is on the phone
She is gone for a while
Can you call back in 10 minutes
Would you mind calling back at XXX?
Can he reach you with this number?
You can try his mobile
He is not here
Who is calling?
May I have your name and phone number?
Do you want to wait for a while or come back later?
Who are you looking for?
Where do you want to go?
May I speak to XXX?
He will be back at about 2pm
