Troubleshooting

How do I know Calisto 620-M is turned on?

The 3-position (off/on/pairing) switch has a GREEN visual indicator when in the "On" position. Pressing the volume +/- buttons while the unit is ON emits a volume adjustment tone.

After the initial installation, I don't see a visual indication on my Calisto 620-M showing that the device is connected to the computer.

•The on-device visual indication (Bluetooth status LEDs) will only show during the initial connection to the computer via the Bluetooth USB adapter. Once the initial connection is made, the on-device indicator turns off (this is done to conserve battery power).

•There is a visual indication (BLUE LED) on the Bluetooth USB adapter which will constantly show the Calisto 620-M connection status.

•The softphone being used will also show which device is currently connected.

My Bluetooth USB adapter isn't working with my Calisto 620-M. The Blue LED on the adapter flashes and never turns solid (showing adapter/speakerphone are connected).

Re-pair the Bluetooth adapter to the speakerphone.

•First, unplug the Bluetooth adapter from the USB port.

•Turn off the speakerphone by sliding the 3-position switch to the left, then slide the switch all the way to the right and hold it there until the Bluetooth LED flashes RED/BLUE.

•Plug the Bluetooth adapter back into the USB port; it flashes then turns solid once paired.

I plugged my USB cable into Calisto 620-M (with other end plugged into the wall charger or USB port) and the charge LED isn't indicating that the unit is charging.

The RED charge LED lights when charging but turns OFF when fully charged; there is no LED indication that the battery is full once the RED LED turns off.

My Calisto 620-M is not charging via the AC wall charger.

Make sure the provided Calisto 620-M USB wall charger (only) is being used for charging; other Plantronics wall chargers will not work with Calisto 620-M, however, the Calisto 620-M charger can be used with other Plantronics products.

Does the Calisto 620-M provide a voice announcement of remaining talk time like some Plantronics headsets?

No, there is no voice announcement of remaining talk time on the Calisto 620-M. The speakerphone provides visual notification when the battery is low. See Low Battery Warnings.

NOTE If you install Plantronics Spokes software, a battery status bar for the device is displayed in the PC taskbar.

Can I use replaceable/dry cell batteries with Calisto 620-M?

No. Calisto 620-M is designed to use its rechargeable lithium ion battery. The Calisto 620-M battery is user-replaceable and replacement batteries are available from Plantronics as an accessory.

Call control is not working with my softphone on my iPad though audio is working fine.

Tablet/mobile versions of PC-based Unified Communications clients and other softphone communication apps may not have the same level of integration with peripheral devices as their PC counterparts. Plantronics Spokes software contains integration touch points for PCs which do not exist for some mobile-based versions of these applications.

620-M specifications

The Plantronics 620-M headset is a sophisticated communication device designed with the modern professional in mind. Featuring a sleek and lightweight design, the 620-M offers both comfort and style, making it an ideal choice for lengthy conference calls and all-day usage.

One of the standout features of the Plantronics 620-M is its superior audio quality. The headset is equipped with advanced noise-canceling technology that effectively blocks out ambient sounds, allowing users to focus on their calls without distraction. This feature is especially valuable in busy office environments or during travel, ensuring crystal-clear conversations in any setting.

The Plantronics 620-M utilizes dual connectivity options, allowing users to connect to both their computer and mobile devices simultaneously. This flexibility means that whether you’re on a Zoom meeting or a phone call, you can seamlessly transition between the two without the need to disconnect and reconnect. The headset also utilizes Bluetooth technology for wireless connectivity, providing freedom of movement and a clutter-free workspace.

Equipped with a long-lasting battery, the Plantronics 620-M supports up to 20 hours of talk time on a single charge. This durability makes it suitable for back-to-back meetings or long-distance calls. Additionally, a quick charge feature allows users to gain several hours of talk time with just a short charging period, ensuring that the headset is always ready for use.

Comfort is another key characteristic of the Plantronics 620-M. With plush ear cushions and an adjustable headband, the headset is designed to provide a snug yet comfortable fit for extended wear. This ergonomic design helps reduce fatigue, making it perfect for professionals who spend significant time in virtual meetings or communication.

Another notable aspect of the Plantronics 620-M is its integration with popular communication platforms. It is optimized for Microsoft Teams, which enhances the user experience with intuitive call controls and easy access to meetings. Visual indicators on the headset also signal to others when you are on a call, promoting professionalism and minimizing interruptions.

In summary, the Plantronics 620-M combines comfort, advanced technology, and exceptional audio quality, making it an excellent choice for professionals looking for a reliable and effective headset for their communication needs. Whether in the office or on the go, the Plantronics 620-M meets the demands of today’s dynamic work environment.