| Aastra M670i Expansion Module (536M) |
 Aastra M670i Expansion Module (536M) Designed for receptionists, administrative assistants, call center agents, power users, and executives who need to monitor and manage a large volume of calls on a regular basis, the Aastra M670i expansion module provides an intelligent choice for all Enterprise IP environments. New: Quantity This product is eligible for 2 Year Platinum Protection! Aastra M670i Features 36 keys with LEDs Connect up to 3 expansion modules per supported phone model Compatibility 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 (sold separately; see option above) Price: 99.99 |