- Convert 3.5mm Smartphone plug to single 4P4C RJ9/RJ10 handset plug.
- Save money by buying a smartphone headset, or using your existing one with your Aastra phone's handset jack.
- Reduce clutter with single headset.
- Does not work with RJ11 jack, which is wider than your handset or headset jack (6 positions vs. 4). RJ11 jack is what is in the wall. RJ9, RJ10, RJ22 are what is on your phone handset or headset.
- Works best with 4-pole (TRRS) headsets
This amazing adaptor converts the standard 3.5mm smartphone plug to an Aastra RJ9, RJ10, or RJ22 handset plug, allowing you to use your favorite smartphone headset with your Aastra office phone. The adapter outputs binaural sound for stereo headsets, meaning you will hear sound out of both ears. The adapter cable is approximately five inches long.
**Works best when paired with an amplifier**
*For optimal use, please plug into the headset jack on your phone. The handset jack usually causes audio distortion
This list is not all inclusive. Please look up the specifications on your specific phone to see if it has a RJ9, RJ10, or RJ22 headset jack. If the Headset Buddy doesn't work with a model on this list we will be happy to refund 100% of your purchase plus pay for return shipping.
Please let us know if you find more incompatible or compatible phone models.
Incompatible Cisco phones
Avaya 1100, 1200, 1600, 2000, 4600 and 9600 series
Nortel 1140T and Visa 350
Shortel IP 230
Uniden Dect2088, TRU9496
Western Electric 6250
Compatible Cisco Phones
Aastra/Packet8/8x8 480e, 480i, 53i, 55i, 57i, 57iCT, 6753i, 6755i, 6757i, 9112i, 9133i, 9143i, 9480i
AltiGen IP Phone 500, 510, 600, 705, 710, 720
Avaya 4500 Series IP
ESI 48-Key IP Feature Phone and 48-Key Digital Feature Phone
GE Model 2-9451
Mitel IP 40XX, 41XX, 5000, 50XX, 5140, 52XX, 53XX, 5550
NEC Dterm Series E
Norstar T7316E, M3904
Nortel IP 1120E IP, 1140E IP, 1150E IP, 1230, i2002 and i2004
Nortel Meridian Norstar Northern Telecom
Shoretel ShorePhone IP models
Splicecom PCS 520
Talkswitch IP Phone, TS-600
3COM 3102, 3103
Plantronics S-12, M22, A20, MX10, TSB, AP15