My jabra bluetooth headset is paired and on. Now how do I get my iPhone 7 to use the headset vs the phone speaker?

SOURCE: bh 101 bluetooth headset lost manual and forgot pairing code

Try this: 1. Ensure that your phone is switched on. 2. If the headset has not been previously paired with a device, switch on the headset. The headset enters the pairing mode, and the indicator light starts to flash blue quickly. If the headset has been previously paired with another device, switch off the headset, and press and hold the multifunction key until the indicator light starts to flash blue quickly. 3. Activate the Bluetooth feature on the phone, and set it to search for Bluetooth devices. See the user guide of your phone for instructions. 4. Select the headset from the list of found devices. 5. Enter the passcode 0000 to pair and connect the headset to your phone. In some phones, you may need to make the connection separately after pairing. You only need to pair the headset with your phone once. If pairing is successful, the headset appears in the menu of the mobile phone where you can view the currently paired Bluetooth devices. When the headset is connected with your mobile phone and ready for use, the indicator light of the headset slowly flashes blue.

SOURCE: Jabra BT135

Firs turn it off then..........
then hold the button for 10 seconds
.......................................................
it will now pair with your phone
the code is "0000"

SOURCE: Iphone does not pair with LG HBS-250 Bluetooth Headset

the bluetooth of iphone is not compatible with this.get the bluetooth application installed from itunes store to maki it compatible.

SOURCE: can a jabra bluetooth headset

i need the pass word for this bluetooth n356

SOURCE: GNM-OTE3 Jabra Bluetooth Headset is blinking 3

Have you already tried to put your headset in pairing mode first? Anyway, to do it, starting with it turned off, press and hold the on/off button for some 5 seconds, until the indicator light is steadily lit (it will flash as it was being turned on, but don't release the button at that phase). Then, make your phone'sbluetooth application search for new devices. After a while, your headset should appear on-screen. Select it and make it connect. If a pairing code (or PIN, or passkey) is requested, enter '0000' (four zeros);
By the way, if your headset's user guide happens to be missing, feel free to download it from this location.
Hope you are able to sort your problems out.