Мы не смогли ей дозвониться, так ка

Мы не смогли ей дозвониться, так как у нее был отключен телефон, но к счастью,мы смогли послать ей сообщение.

Results (English) 1:

We were unable to reach her since she had disconnected phone, but fortunately, we were able to send her a message.

Results (English) 2:

We could not get through to her, as she was off the phone, but fortunately, we were able to send her a message.

Results (English) 3:

we have not been able to reach her, since she had turned off the phone, but fortunately, we have been able to send her a message.