It’s a popular question:
“What headsets work with my Polycom/Cisco/Aastra/Grandstream phone?”
To find the answer you can navigate the fun maze of manufacturer websites, read thrilling product product data sheets, or just make it easy on yourself and check out these links:
Simply browse the list of VoIP headsets that have been tested to sync with your phone.
Also, you can download the VoIP headset cheat sheet for future reference.