What Are Expansion Modules - Aastra AastraLink Pro 160 Administrator's Manual

Aastra telecom network device administrator guide
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AastraLink FAQs
What Are Softkeys and How Do They Work?

What are Expansion Modules?

The 675xi Series Aastra IP SIP Phones offer expansion module units that can
attach to the right side of the phone to provide additional softkeys. These
expansion modules are called the 536M and the 560M.
Model 536M
For Phones 6753i, 6755i, 6757i, and 6757i CT
Model 560M
For Phones 6755i, 6757i and 6757i CT
41-001190-02 Rev. 01, Rel. 1.2
6-7

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