Convert 3.5mm OMTP Smartphone plug to single 4P4C RJ9/RJ10 handset/headset plug
Save money by buying a smartphone headset, or using your existing one with your office phone''s headset jack
We have a 30-day, no-questions-asked return policy for all of our products as well as a one-year, 100% Satisfaction guarantee.
Please see our updated compatible phone list in the description before purchasing.
This adapter will not work with Apple EarPods and other CTIA based headsets.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4.2 inch
Height : 0.8 inch
Length : 4.9 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B004FV7MHE

Product Description

*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 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.

COMPATIBILITY
This list is not all inclusive. Updated 3/1/17
Incompatible Phones:
Avaya 1100, 1200, 1600, 2000, 4600 and 9600 series
Cisco phones - please see https://www.amazon.com/dp/B01AMUPF9S
Nortel 1140T and?Visa 350
Polycom phones
Shortel IP 230
Uniden Dect2088, TRU9496
Western Electric 6250

Incompatible Headphones:
Apple EarPods.

Compatible Phones:
Aastra/Packet8/8x8 480e, 480i, 53i, 55i, 57i, 57iCT, 6753i, 6755i, 6757i, 9112i, 9133i, 9143i, 9480i
Allworks 9212
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
Inter-Tel
Lucent 8410D
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
Panasonic Hybrid
Plantronics T10
Possum Sero
Shoretel ShorePhone IP models
Siemens
Splicecom PCS 520
Talkswitch IP Phone, TS-600
Toshiba
3COM 3102, 3103
Compatible Amplifiers:
Plantronics S-12, M22, A20, MX10, TSB, AP15