If you would like to learn common phrases used on the telephone, take a look at the On the Telephone practice dialog for beginners.

Here are other key telephone English practice features at the site:

Telephone English: Dialogue and Appropriate Vocabulary
How to Telephone: Tips and Tricks to Make Sure a Native English Speaker Slows Down!
Practice Exercises to Improve Your Telephoning Skills
Role Play Dialogue Cues to Practice Telephoning with Friends

Here are some other collocation practice materials:

Emphatic Expressions
Common Adjective Combinations
Banking Collocations

• Should you watch a video?
• Perhaps, it would be a good idea to do a few quizzes.
• Of course, you should try to speak English with your friends.