Expansion Modules Category at Surplus Outlet USA

Select read more … for pricing. “Aastra Meridian 522 Brand New Includes One Year Warranty, Item # B0240408 / B0240410 The Aastra Meridian 522 expansion module is compatible with both the M5216 and M5316. The M522 is a 22-button expansion unit, with associated LCD indicators, providing additional keys for lines or features. You can use up to 2 expansions, for a total of 44 extra programmable buttons. 522 Features: Programmable More Info

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