The Vista M22 amplifier brings superior sound-quality, acoustic protection and compatibility with those telephones that do not allow direct connection of headsets.

• Manufacture Discontinued 10/24 – Replaced by MDA524 QD
• Compatible with virtually all single or multi-line professional desk phones
• Separate controls enable independent adjustment of incoming and outgoing volume
• Clearline Audio technology includes startle protection, incoming call leveling, echo control, incoming noise reduction and background noise reduction
• Receive and transmit bandwidth supports TIA-920 voice bandwidth (150Hz to 6800Hz, up from 300Hz to 3400Hz with traditional telephony)
• Keep incoming sounds at a consistent listening level: fax tones and loud calls will be reduced to your chosen preset incoming audio level
• Quick disconnect between the headset and this amplifier allows you easily disconnect your headset without having to remove your headset or place your call on hold
• Ergonomically designed buttons and dials – rotary volume control, headset/handset switch, locking mute button
• Echo management feature reduces echo on VoIP telephone systems
• Utilizes wideband technology for phone systems that are wideband enabled
• If your phone is not wideband the M22 amplifier will still sound great
• M22 buttons are light putty color, M12 buttons were purple
• M22 is light gray compared to the dark gray of the M12
• Backwards compatible with all phones the M12 was compatible with, and works with traditional phone lines as well as wideband for “future proofing”
• Comes with modular pigtail cord (in back) and 10 foot modular coil cord (front) that has Plantronics Quick Disconnect (QD) for connecting to Plantronics headset tops
• If you would like to use an M22 on a Cisco 7900 phone, you will need to plug into the handset port
• M22 replaced the M12 and and has supports wideband
• 2 year manufacture warranty