picked up an extension?

[Torsten]

Could you tell me what extension means in this sentence, please?

Jonah picked up an extension and they chatted for a while about the settlement conference --who was there, where was it, what was it like?

I understand that you can dial an extension but how can you one up?

Thanks a lot,
Torsten
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Molly]

"Pick up the extension" means "pick up the additional telephone set that is connected to the same telephone line". It's a very common expression.

[Yankee]

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Still looking for additional examples of Grisham's use of the word 'fetch', Torsten?

This link confirms what Molly posted:
http://dictionary.cambridge.org/define.asp?key=27208&dict=CALD
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