Aastra - B0240408 - M522 Ash
Aastra
Model: B0240408
22-Button expansion unit with LCD indicators *Provides Additional Keys for Lines or Features * Offers Effective Mini-Console Capabilities * Up to 2 Expansions Can Be Used for Total of 44 Extra Programmable Buttons *Compatible with merdian M5216 and M5316 Telephones
