Jabra GN9120 DUO Operator's manual

Jabra GN9120 Duo Flex NC Microphone
How to connect my Jabra GN9120 EHS / GN9125 EHS with
Aastra Open Phone 6771, 6773, 6775, 71, 73, 75, Aastra 6739i,
Aastra 7434 and 7444, 5370, 5370ip, 5380, 5380ip
Prerequisite:
Jabra GN9120 EHS + Jabra LINK 14201-10
Jabra GN9125 EHS + Jabra LINK 14201-10
In combination with one of the following phones:
Open Phone 6771 / 6773 / 6775 incl. IP (Old name: Open Phone
71/73/75 incl. IP)
Aastra 6739i
Aastra 7434 / 7444 IP
5370, 5370ip, 5380, 5380ip
Connection:
1. Plug the 1-sided end of the DHSG cable marked in blue into the socket
of your phone marked with the "headset" symbol.
2. Plug the split end of the DHSG cable into the base of the Jabra GN912x.
Insert the RJ9 plug into the socket with the complete "phone" symbol
and the RJ45 plug into the socket on the Jabra GN9120 base marked
with "AUX".
27/06/2021 20:11
https://www.emea.jabra.com/supportpages/jabra-gn9120/9129-808-101/faq/5e459146-
cabb-468b-9141-4ea2287506a7
Page 1 of 4

EHS setup:
The Jabra GN912x must be set up to DHSG EHS. (The Jabra GN912x DHSG
is always supplied in DHSG mode).
You can check or set it up as follows:
1. Put the headset in the base.
2. Then press the PLUS and MINUS buttons simultaneously for 6 seconds
until the online display on the headset starts to flash.
3. The base will now display to you the EHS currently installed. The online
indicator light indicates "MSH", the pulsating light indicates "RHL", the
MUTE light "DHSG" and the battery display "AEI".
4. With the PLUS or MINUS buttons, you can now switch between the
27/06/2021 20:11
https://www.emea.jabra.com/supportpages/jabra-gn9120/9129-808-101/faq/5e459146-
cabb-468b-9141-4ea2287506a7
Page 2 of 4

different EHS types.
5. To confirm the EHS has successfully installed, the phone automatically
switches back to charge mode after approx. 10 seconds.
Base setup:
Set the phone set-up switch to "A".
Microphone level setup:
1. Please call someone with the headset.
2. You must now simultaneously press the PLUS and MINUS buttons,
which immediately produces a signal tone. You can now increase the
microphone volume with PLUS or decrease the volume with MINUS.
3. To confirm, after approx. 10 seconds a low signal tone is produced. All
27/06/2021 20:11
https://www.emea.jabra.com/supportpages/jabra-gn9120/9129-808-101/faq/5e459146-
cabb-468b-9141-4ea2287506a7
Page 3 of 4

the settings are then automatically saved.
Phone setup:
Open Phone 71: Menu > Settings > Audio > Headset ON
Open Phone 73 / 75 incl. IP: Menu > Settings > Headset > Headset ON
27/06/2021 20:11
https://www.emea.jabra.com/supportpages/jabra-gn9120/9129-808-101/faq/5e459146-
cabb-468b-9141-4ea2287506a7
Page 4 of 4