This converter allows you to use your phone's 2.5mm mini headset jack to connect various devices that use an RJ9 type interface. This converter is also used for connecting various specialized of cables with RJ-9/RJ22 interface to a phone with a 2.5mm mini headset jack.
Note: This converter's opening is the same size as your handset curly cord (RJ9). The larger RJ11 interface that is commonly used with the telephone line will not fit.
Example of usage
- Connecting Plantronics APP-51 or APP-50 EHS cable to telephone
- Connecting recorder to a phone with 2.5mm headset jack
- Feeding audio into a phone from a device with a RJ9/RJ22 interface
- Connecting an additional handset into a phone with 2.5mm headset jack
- Connecting a headset with RJ9 interface to a phone's 2.5mm headset jack
- Connecting a recording device to a mobile phone with 2.5mm headset (newer smartphones only use 3.5mm - check your user's guide)
Compatible Phones
- Alititouch
- AT&T Synj, 992, 1080, 1070, 1040, 993
- Cisco SPA921, 501G, 502G, 504G, 508G, 509G, 525G, 7920, 7921 7921G, 7929, Powercube
- Linksys SPA 921, SPA 922, SPA 941, SPA 942, SPA 962
- Nortel WLAN 2210, WLAN 2211
- Panasonic 7600, 7700 and 300 series
- Polycom SoundPoint IP 320, 321, 330, 331
- Polycom SoundPoint SE
- RCA Executive Series, Visys
