In some instances you may encounter an issue and you will be required to reset Cisco Jabber.
1. Select the gear icon in the top right of Cisco Jabber.
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2. Choose "Sign out".
3. From the sign in screen - choose "Reset Jabber".
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4. Now sign in using your full email address.
5. If you use Cisco Jabber for phone calls - make sure that your Jabber is set to use computer for calls. A guide to switching phone audio can be found here.