ＴＥＬ

noun

telephone; phone number

Refers to the device or the contact number itself. Common in written contexts like forms, business cards, and contact sections.

• 名めい刺しにＴＥＬ番ばん号ごうが書かいてある。

  The business card has a telephone number written on it.

noun, noun or participle which takes 'suru'

phone call

Used for the act of calling. Can be used with する to mean 'to make a phone call', though 電話する is more common in everyday speech.

• 後あとでＴＥＬするね。

  I'll give you a call later.