Jabra Speak 510 Faq page 4

2. Set your Bluetooth headset in pairing mode, and then pair the devices.
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How do I pair my Jabra Speak 510 with two Bluetooth devices at the same time?
Prerequisites

Jabra Direct
o Firmware version 2.7.0 or later
Your Jabra Speak 510 supports multiple call handling from two paired devices. The device that
is paired last is the primary device, from which you can use voice dialling*. The redial feature*
works with the device from which you made the last outgoing call.
*If this feature is supported by the device
To pair with two Bluetooth devices, follow these steps: