Aastra M670i Expansion Module (536M)
- 36 keys with LEDs
- Connect up to 3 expansion modules per supported phone model
Compatible with Aastra 57i, 57i CT, 6735i, 6737i, and 6739i
- Aastra 57i and 57i CT - no power supply required
- Aastra 6735i and 6737i - AC adapter is required if using more than a single expansion module (not included; see option below)
- Aastra 6739i - AC adapter is required if using any expansion modules
New items ship in their original manufacturer's packaging. These items are in excellent condition with no blemishes on their housings.
No Hassle Return Policy & PC Certified Guarantee
Rest assured, if you order the wrong items, don't like the model, or just don't need it anymore we accept returns with NO restocking fees. Whether you want something different or just a credit, we have you covered! This policy goes hand in hand with our company culture of delivering outstanding customer satisfaction.
If you need assistance finding a different product our awesome staff is ready to help. Contact us for expert support.
- Item(s) must be returned within 30 days from invoice date.
- Item(s) must be received in original condition preferably in the same packing materials.
- Item(s) should be securely packed for safe return.
- The purchaser is responsible for all shipping costs and insurance.
- Products usually ship within two business days after payment. If you have a rush order, or need an item delivered on Saturday please call to request faster shipping.
- All products are shipped and delivered on business days.
- Fixed or free shipping offer does not apply to items shipped on pallets, please call for rates on those items. Free shipping offers only apply to the continental US.