![Amazon.com: Headset Buddy 2.5mm Headset Phone Adapter - 2.5mm to RJ9/RJ10 (PH25-RJ9C) Compatible for Cisco and Ativa Phones: Electronics Amazon.com: Headset Buddy 2.5mm Headset Phone Adapter - 2.5mm to RJ9/RJ10 (PH25-RJ9C) Compatible for Cisco and Ativa Phones: Electronics](https://images-na.ssl-images-amazon.com/images/I/31g3OdrnY%2BL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOUR%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA99%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: Headset Buddy 2.5mm Headset Phone Adapter - 2.5mm to RJ9/RJ10 (PH25-RJ9C) Compatible for Cisco and Ativa Phones: Electronics
![Amazon.com: Headphone Earpiece Jack Adapter Cable for Cordless Phones: 2.5mm Male to 3.5mm Female (for Smartphone Headphone) Cordless Phone Hands-Free Headset Adapter: Electronics Amazon.com: Headphone Earpiece Jack Adapter Cable for Cordless Phones: 2.5mm Male to 3.5mm Female (for Smartphone Headphone) Cordless Phone Hands-Free Headset Adapter: Electronics](https://images-na.ssl-images-amazon.com/images/I/31PFSqhBc0L._AC_SX355_.jpg)
Amazon.com: Headphone Earpiece Jack Adapter Cable for Cordless Phones: 2.5mm Male to 3.5mm Female (for Smartphone Headphone) Cordless Phone Hands-Free Headset Adapter: Electronics
![Amazon.com: PC Headset Adapter Computer Stereo Headphone Dual 3.5mm to Phone Rj9/Rj10 Converter ONLY for Cisco IP Phones 7942 7945 7960 7960G 7961 8841 etc: Office Products Amazon.com: PC Headset Adapter Computer Stereo Headphone Dual 3.5mm to Phone Rj9/Rj10 Converter ONLY for Cisco IP Phones 7942 7945 7960 7960G 7961 8841 etc: Office Products](https://images-na.ssl-images-amazon.com/images/I/31Zj-YPIUPL._AC_SX450_.jpg)
Amazon.com: PC Headset Adapter Computer Stereo Headphone Dual 3.5mm to Phone Rj9/Rj10 Converter ONLY for Cisco IP Phones 7942 7945 7960 7960G 7961 8841 etc: Office Products
![Headset Adapter 3.5mm Smartphone Mobile Phone Headset Adapter for Cisco IP Phone Headset Adapter: Amazon.ca: Electronics Headset Adapter 3.5mm Smartphone Mobile Phone Headset Adapter for Cisco IP Phone Headset Adapter: Amazon.ca: Electronics](https://images-na.ssl-images-amazon.com/images/I/31ch4IiVyrL._AC_SX355_.jpg)
Headset Adapter 3.5mm Smartphone Mobile Phone Headset Adapter for Cisco IP Phone Headset Adapter: Amazon.ca: Electronics
![Amazon.com: Audicom 2.5mm Headset to Cisco Phone Adapter - 2.5mm to RJ9/RJ10 IP Phone Jack Converter for Plantronics M22 Amplifier and Cisco Unified Telephone IP Phones 7931G 7940G 7941G 7942G 7945G (H25-CSA): Amazon.com: Audicom 2.5mm Headset to Cisco Phone Adapter - 2.5mm to RJ9/RJ10 IP Phone Jack Converter for Plantronics M22 Amplifier and Cisco Unified Telephone IP Phones 7931G 7940G 7941G 7942G 7945G (H25-CSA):](https://m.media-amazon.com/images/I/51VNyDRE52L._AC_SS450_.jpg)
Amazon.com: Audicom 2.5mm Headset to Cisco Phone Adapter - 2.5mm to RJ9/RJ10 IP Phone Jack Converter for Plantronics M22 Amplifier and Cisco Unified Telephone IP Phones 7931G 7940G 7941G 7942G 7945G (H25-CSA):
![Amazon.com: VoiceJoy Headset Adapter Cable Compatible with Plantronics and VoiceJoy Headsets - Connects to All Cisco 6000, 7800 and 8000 Series Phones and Also Models 7940 7941,26716-01 Cord: Electronics Amazon.com: VoiceJoy Headset Adapter Cable Compatible with Plantronics and VoiceJoy Headsets - Connects to All Cisco 6000, 7800 and 8000 Series Phones and Also Models 7940 7941,26716-01 Cord: Electronics](https://images-na.ssl-images-amazon.com/images/I/617sC7AU4ZL._AC_SL1183_.jpg)
Amazon.com: VoiceJoy Headset Adapter Cable Compatible with Plantronics and VoiceJoy Headsets - Connects to All Cisco 6000, 7800 and 8000 Series Phones and Also Models 7940 7941,26716-01 Cord: Electronics
![Amazon.com: 2.5mm Adapter Cable Compatible with ANY Plantronics or TruVoice QD Headset and works with Cisco SPA Phones, Polycom IP 320, IP330, IP321, IP331, AT&T, VTech, Panasonic and All Phones with a 2.5mm Port: Electronics Amazon.com: 2.5mm Adapter Cable Compatible with ANY Plantronics or TruVoice QD Headset and works with Cisco SPA Phones, Polycom IP 320, IP330, IP321, IP331, AT&T, VTech, Panasonic and All Phones with a 2.5mm Port: Electronics](https://images-na.ssl-images-amazon.com/images/I/41AtEtz22PL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOUR%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA28%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: 2.5mm Adapter Cable Compatible with ANY Plantronics or TruVoice QD Headset and works with Cisco SPA Phones, Polycom IP 320, IP330, IP321, IP331, AT&T, VTech, Panasonic and All Phones with a 2.5mm Port: Electronics
![Amazon.com: RJ9 Cisco Corded Office HD Voice Headset Compatible Cisco IP Phones 6851 7945g 7962g 8811 8841 8845 8851 8861 8961 9951 Series Model,Plus 3.5mm Connector (Monaural): Electronics Amazon.com: RJ9 Cisco Corded Office HD Voice Headset Compatible Cisco IP Phones 6851 7945g 7962g 8811 8841 8845 8851 8861 8961 9951 Series Model,Plus 3.5mm Connector (Monaural): Electronics](https://images-na.ssl-images-amazon.com/images/I/51LKYCtSy9L._AC_SX425_.jpg)
Amazon.com: RJ9 Cisco Corded Office HD Voice Headset Compatible Cisco IP Phones 6851 7945g 7962g 8811 8841 8845 8851 8861 8961 9951 Series Model,Plus 3.5mm Connector (Monaural): Electronics
![Amazon.com: 2.5mm Headset to ONLY Cisco Phone Adapter - 2.5mm to RJ9/RJ10 Converter for Cisco Unified Telephone IP Phones 7940 7941 7942 7971 8841 8851 etc: Office Products Amazon.com: 2.5mm Headset to ONLY Cisco Phone Adapter - 2.5mm to RJ9/RJ10 Converter for Cisco Unified Telephone IP Phones 7940 7941 7942 7971 8841 8851 etc: Office Products](https://images-na.ssl-images-amazon.com/images/I/61zkvDpaw6L._AC_SL1500_.jpg)
Amazon.com: 2.5mm Headset to ONLY Cisco Phone Adapter - 2.5mm to RJ9/RJ10 Converter for Cisco Unified Telephone IP Phones 7940 7941 7942 7971 8841 8851 etc: Office Products
![Amazon.com: Telephone Headset Cable for Office Phones RJ9 Headset Adapters Compatible with Plantronics or MKJ Headsets for Yealink Panasonic Sangoma Grandstream etc, Alternative to Plantronics U10P-S: Electronics Amazon.com: Telephone Headset Cable for Office Phones RJ9 Headset Adapters Compatible with Plantronics or MKJ Headsets for Yealink Panasonic Sangoma Grandstream etc, Alternative to Plantronics U10P-S: Electronics](https://images-na.ssl-images-amazon.com/images/I/51u4Kusmh1L._AC_SL1000_.jpg)
Amazon.com: Telephone Headset Cable for Office Phones RJ9 Headset Adapters Compatible with Plantronics or MKJ Headsets for Yealink Panasonic Sangoma Grandstream etc, Alternative to Plantronics U10P-S: Electronics
![Amazon.com: VoiceJoy Female 3.5mm CTIA Smartphone Headset to Only Cisco RJ9 Adapter Cable - 3.5mm Stereo Headphone Converter to Cisco Office IP Phones 9961 7940 7941 7942 8841 8845 9941 etc: Office Products Amazon.com: VoiceJoy Female 3.5mm CTIA Smartphone Headset to Only Cisco RJ9 Adapter Cable - 3.5mm Stereo Headphone Converter to Cisco Office IP Phones 9961 7940 7941 7942 8841 8845 9941 etc: Office Products](https://images-na.ssl-images-amazon.com/images/I/41WU2b0XQZL._AC_SX355_.jpg)
Amazon.com: VoiceJoy Female 3.5mm CTIA Smartphone Headset to Only Cisco RJ9 Adapter Cable - 3.5mm Stereo Headphone Converter to Cisco Office IP Phones 9961 7940 7941 7942 8841 8845 9941 etc: Office Products
![Amazon.com: Avaya Headset HD Voice with HIS Adapter Compatible with Avaya 1600, 9600, J100 Series IP Phones Model, Plus 3.5mm Connector (Binaural): Electronics Amazon.com: Avaya Headset HD Voice with HIS Adapter Compatible with Avaya 1600, 9600, J100 Series IP Phones Model, Plus 3.5mm Connector (Binaural): Electronics](https://images-na.ssl-images-amazon.com/images/I/51%2Bdv9APbgL._AC_SX450_.jpg)
Amazon.com: Avaya Headset HD Voice with HIS Adapter Compatible with Avaya 1600, 9600, J100 Series IP Phones Model, Plus 3.5mm Connector (Binaural): Electronics
![Amazon.com: Pc Computer Stereo Headset Dual 3.5mm to Cisco Phone Rj9/Rj10 Phone Jack Adapter Converter for Cisco IP Phone 7940 7941 7960 7961 7945 and More: Electronics Amazon.com: Pc Computer Stereo Headset Dual 3.5mm to Cisco Phone Rj9/Rj10 Phone Jack Adapter Converter for Cisco IP Phone 7940 7941 7960 7961 7945 and More: Electronics](https://images-na.ssl-images-amazon.com/images/I/31UzU4dONoL._AC_SX355_.jpg)
Amazon.com: Pc Computer Stereo Headset Dual 3.5mm to Cisco Phone Rj9/Rj10 Phone Jack Adapter Converter for Cisco IP Phone 7940 7941 7960 7961 7945 and More: Electronics
![Amazon.com: Headset Adapter Cable Smartphone 3.5mm Headset to 4P4C RJ9 Plug for Yealink T20P T22P T26P T28P Phones and Grandstream Phones: Electronics Amazon.com: Headset Adapter Cable Smartphone 3.5mm Headset to 4P4C RJ9 Plug for Yealink T20P T22P T26P T28P Phones and Grandstream Phones: Electronics](https://images-na.ssl-images-amazon.com/images/I/71WbVCFydUL._AC_SX450_.jpg)
Amazon.com: Headset Adapter Cable Smartphone 3.5mm Headset to 4P4C RJ9 Plug for Yealink T20P T22P T26P T28P Phones and Grandstream Phones: Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones: Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones: Electronics](https://images-na.ssl-images-amazon.com/images/I/51iqUCkiqmL._AC_SY450_.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones: Electronics
![Amazon.com: Onvian RJ9 Male to 3.5mm Female Plug Headset Jack Phone Audio Adapter Cable: Electronics Amazon.com: Onvian RJ9 Male to 3.5mm Female Plug Headset Jack Phone Audio Adapter Cable: Electronics](https://images-na.ssl-images-amazon.com/images/I/51LkKmkhWjL._AC_SY450_.jpg)
Amazon.com: Onvian RJ9 Male to 3.5mm Female Plug Headset Jack Phone Audio Adapter Cable: Electronics
![Amazon.com: Standard 3.5mm Jack Smartphone Headset Adapter Cable Converter to RJ9 Plug for Cisco Unified Office Telephone 7970 7940 7941 7942 7971 etc: Office Products Amazon.com: Standard 3.5mm Jack Smartphone Headset Adapter Cable Converter to RJ9 Plug for Cisco Unified Office Telephone 7970 7940 7941 7942 7971 etc: Office Products](https://images-na.ssl-images-amazon.com/images/I/61ySA1NcX0L._AC_SY355_.jpg)
Amazon.com: Standard 3.5mm Jack Smartphone Headset Adapter Cable Converter to RJ9 Plug for Cisco Unified Office Telephone 7970 7940 7941 7942 7971 etc: Office Products
![Amazon.com: Headset Buddy Female 3.5mm OMTP Smartphone Headset to Male RJ9 Compatible with Cisco Telephone Plug Adapter Cable (PH35-RJ9Cisco): Electronics Amazon.com: Headset Buddy Female 3.5mm OMTP Smartphone Headset to Male RJ9 Compatible with Cisco Telephone Plug Adapter Cable (PH35-RJ9Cisco): Electronics](https://images-na.ssl-images-amazon.com/images/I/41foeHKkwPL._AC_SY355_.jpg)
Amazon.com: Headset Buddy Female 3.5mm OMTP Smartphone Headset to Male RJ9 Compatible with Cisco Telephone Plug Adapter Cable (PH35-RJ9Cisco): Electronics
![Amazon.com: RJ9 Corded Office Phone Headset for Cisco IP Phone 6941 6945 6961 7940 7942 7945 7960 7962 7970 7971 7975 with Noise Cancelling Mic: Electronics Amazon.com: RJ9 Corded Office Phone Headset for Cisco IP Phone 6941 6945 6961 7940 7942 7945 7960 7962 7970 7971 7975 with Noise Cancelling Mic: Electronics](https://images-na.ssl-images-amazon.com/images/I/61s%2BCiSr7QL._AC_SX450_.jpg)
Amazon.com: RJ9 Corded Office Phone Headset for Cisco IP Phone 6941 6945 6961 7940 7942 7945 7960 7962 7970 7971 7975 with Noise Cancelling Mic: Electronics
![Amazon.com: USB Plug Computer PC Laptop To RJ9 Female Adapter For Headset Work With Avaya Nortel Nt Yealink Viop POE NEC Mitel Office Desktop IP Telephone Phone Skype MSN Video Phone App Amazon.com: USB Plug Computer PC Laptop To RJ9 Female Adapter For Headset Work With Avaya Nortel Nt Yealink Viop POE NEC Mitel Office Desktop IP Telephone Phone Skype MSN Video Phone App](https://images-na.ssl-images-amazon.com/images/I/31KYNN-kuqL._AC_SX425_.jpg)
Amazon.com: USB Plug Computer PC Laptop To RJ9 Female Adapter For Headset Work With Avaya Nortel Nt Yealink Viop POE NEC Mitel Office Desktop IP Telephone Phone Skype MSN Video Phone App
![Amazon.com: Standard 3.5mm Jack Smartphone Headset Headphone Adapter Cable Converter to RJ9 Plug for Plantronics M22 Amplifier and Cisco Unified 7960 7940G 7941G 7942G 7945G Office Telephone IP Phones: Office Products Amazon.com: Standard 3.5mm Jack Smartphone Headset Headphone Adapter Cable Converter to RJ9 Plug for Plantronics M22 Amplifier and Cisco Unified 7960 7940G 7941G 7942G 7945G Office Telephone IP Phones: Office Products](https://images-na.ssl-images-amazon.com/images/I/61pUqKx9tQL._AC_SY355_.jpg)
Amazon.com: Standard 3.5mm Jack Smartphone Headset Headphone Adapter Cable Converter to RJ9 Plug for Plantronics M22 Amplifier and Cisco Unified 7960 7940G 7941G 7942G 7945G Office Telephone IP Phones: Office Products
![Amazon.com: Cisco RJ Plug Headset Adapter Converter to 3.5mm CTIA Plug Apple iPhone Ipad iPod Stereo Headset Headphones (Cisco Brand Telephone 79XX ONLY, NOT for Cisco CP-XXXX Series): Office Products Amazon.com: Cisco RJ Plug Headset Adapter Converter to 3.5mm CTIA Plug Apple iPhone Ipad iPod Stereo Headset Headphones (Cisco Brand Telephone 79XX ONLY, NOT for Cisco CP-XXXX Series): Office Products](https://images-na.ssl-images-amazon.com/images/I/51a%2B6f3vW1L._AC_SX355_.jpg)