If you have a CISCO phone and want the Jabra Pro headset to work properly, you have to buy this. It's a mystery to me that why Jabra would not include this in the Jabra Pro itself but thats a different debate.Without this USB adapter, I had to bring the phone off-hook manually, to make a call or to hang it up! The headset was merely a means to "transfer" a call in progress to the headset.After installing this adapter, one can:1. Start a call from the headset itself (without bothering to pick the handset off).2. Hang up a call3. Mute / Un-Mute4. And even get answer an incoming call, directly from the headset (while being away from the phone itself).5. Install is as easy as 1-2-3It does not interfere or change anything with respect to your handset / speakerphone operation of your phone. Plugs into the USB port of your phone and the two RJ-11 jacks plug into your headset-base. And you are up and running.Bottomline, this device should have been included with the Jabra Pro, but it's not. Regardless, its a must have for any one who owns a Jabra Pro desktop headset.
Wir verwenden den Adapter mit den Innovaphone ip 222 Telefonen.Alles ist perfekt. Auch das Abnehmen am Headset funktioniert mit dem Adapter.Der Adapter war nötig, da das Innovaphone IP222 nur noch USB unterstützt.Wir verwenden Jabra PRO920 (kein direkter USB anschluss.
Arrived on time. Works well with the Cisco 9971 and Jabra Pro wireless headset I use. Occasionally my headset looses connectivity, but I think that's between the Headset and the base. Does a great job!
