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| Aastra 536M (M670i) expansion module
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Aastra 536M (M670i module)
36 Key Expansion Module:
- 36 keys with LED
- Paper strip labeling
- Supported on 55i, 57i, 57i CT
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- Scalable to 3 expansion modules per phone
- Power direct from phone
- Programmable features like Line, Speeddial, BLF, BLA, SCA, DND
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| 9.5" x 9" x 2.5" |
| Warranty Information: |
| MFG# A1736-0000-10-55 |
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