telephoning

/T EH1 L AH0 F OW0 N IH0 NG/
verb
  1. 1

    To (attempt to) contact someone using the telephone.

  2. 2

    To convey (a message) by telephoning.

noun
  1. 1

    The act of placing a telephone call.

Source: https://en.wiktionary.org/wiki/telephone, https://en.wiktionary.org/wiki/telephoning