Call Center Headset Handbook
- RJ9 connector and RJ9 jack
RJ9 connector is a modular 4P4C connector. RJ9 connector is normally used for telephone handset and telephone headset. It looks like the regular telephone cord connector RJ11, but slightly smaller. The width of RJ9 connector is 7.7mm while the telephone cord connector is 9.65mm. (Please see picture at the right.)
RJ9 jack is the jack for RJ9 connector. It is used on telephone to connect telephone handset and telephone headset. (Please see picture at the right.)
- 2.5mm Headset Jack / 2.5mm Headset Connector / phone with 2.5mm headset jack
2.5mm headset jack is a 2.5mm diameter port for telephone headset. It is normally located at the right hand side of the phone. It has 3 conductors inside. 2.5mm headset jack is normally used for small office phones, home office phones and cordless phones’ handset.
2.5mm Headset Jack on Different Desktop Phones
2.5mm connector is a small round pin connector in 2.5mm diameter, with 2 black rings.
- OvisLink 2.5mm headset connector compatible telephones
Following are the IP phones for office have 2.5mm headset jack and compatible with OvisLink 2.5mm headset:
Allworx IP phone models: 9102, 9112
Cisco SPA Small Business series: SPA303, SPA501G, SPA502G, SPA504G, SPA508G, SPA509G, SPA512G, SPA514G, SPA525G, SPA525G2
Polycom SoundPoint IP 321, 331, 331c. Polycom SoundPoint Pro SE-220, SE-225.
Following are the home phone and home office phone have 2.5mm headset jack and compatible with OvisLink 2.5mm headset:
AT&T desktop phone models: ML17929, ML17939, 1040, 1070, 1080, 944, 945, 955, 964, 974, 984, 983, 993
Panasonic desktop phone models: KX-DT521, KX-DT543, KX-DT546, KX-NT543, KX-NT546, KX-NT551, KX-NT553, KX-NT556 and KX-NT560
Home cordless phones with headset port.
Click here go to the page with all OvisLink headset models with 2.5mm connector.
- Does 2.5mm headset work with Smartphones?
No, it is not compatible. Smartphones have 3.5mm headset jack, not 2.5mm.
- Does 2.5mm headset work with computers?
No, it is not compatible.
Most of the laptop computers have 3.5mm headset jack, not 2.5mm.
Some computers may have 2.5mm jack, but with 4 conductors, not 3.
- Available Quick Disconnect Cords with 2.5mm Connector
Following are 2.5mm Quick Disconnect cord we have available:
2.5 ft coiled 2.5mm Quick Disconnect cord
2.5 ft coiled 2.5mm Quick Disconnect cord with volume control and mute function
1 ft short 2.5mm Quick Disconnect cord
- 3.5mm Headset Jack and a 3.5mm Headset Connector
A 3.5mm headset jack is a 3.5mm diameter port for headset. It is used on some computers and some cell phones.
A 3.5mm connector is a small round pin connector in 3.5mm diameter, with 3 black rings. It connects headset to older smartphone models, like iPhone 6 and before.
- Quick Disconnect
Call Center headsets have a flat connector at the middle of the headset cord. Headset user may hold two sides of the connector pull straightly to disconnect the headpiece from the bottom cord and left the bottom cord connected with the device. While the headpiece is disconnected from the bottom cord, there will be no audio on the headset, but call does not disconnected. When the headset user connect the headpiece back with the bottom cord, the audio will be back to the headset.
- Training Adapter
Call Center headset training adapter is designed to connect 2 headsets to one phone for training purposes. Both headsets’ speakers and microphone can work at the same time. There are mute buttons for each of the headsets connected to the adapter. The trainer may press the corresponding mute buttons to mute any one of the connected headsets anytime.
- Dialpad Telephone or Headset Telephone
A dialpad telephone or headset telephone is a telephone with telephone keypad, but without the regular hand receiver. It uses a headset instead of a hand receiver. It connects to regular phone line or VoIP adapter. It’s usually used in call center settings.
- Dual Ear and Single Ear Interchangeable Headset
OvisLink designed new dual ear headsets with a unique feature. It allows user to mute one of the speakers to use a dual ear headset as a single ear headset anytime.
There is a mute button on the speaker that does not attached with the microphone. Press the mute button, the speaker will be muted and the headset functions as a single ear. Press the mute button again to un-mute the speaker and the speakers on user’s both ears will work as normal.
- Which headset models have this feature?
All the OvisLink dual ear headset model started with OVHS-DMM5 have this feature. Following is the list.
OVHS-DMM5-CUF - Call Center Headset Compatible with Cisco Unified Phones
OVHS-DMM5-FON - Call Center Headset Compatible with FortiFone Phones
OVHS-DMM5-MTL - Call Center Headset Compatible with Mitel Phones
OVHS-DMM5-NTL - Call Center Headset Compatible with Nortel Phones
OVHS-DMM5-PSR - Call Center Headset Compatible with Polycom Phones
OVHS-DMM5-P1 - Call Center Headset Compatible with different Telephone Brands
Most desktop phones have RJ9 headset located at the back of the phone marked with "Headset" or headset icon. Some phones have 2.5mm headset jack and located at the low right hand side of the phone.
Some telephone brands have different series that with RJ9 headset jack and 2.5mm headset jack.
Allworx
9112 & 9102: have 2.5mm headset jack at the low right hand side of the phone
9204 & 9204G, 9202E, 9202, 9212 & 9212L, 9224; Verge 9308, 9312: have RJ9 headset jack at the back of the phone
AT&T
Most of the AT&T phones have 2.5mm headset jack at the low right hand side of the phone
AT&T Syn248 have RJ9 headset jack at the back of the phone
Cisco
SPA Small Business Series have 2.5mm headset jack at the low right hand side.
Other Cisco phone models have RJ9 headset jack at the back of the phone
Polycom
SoundPoint IP 321, 331, 331c and SoundPoint Pro SE-220, SE-225 have 2.5mm headset jack at the low right hand side.
Other Polycom phone models have RJ9 headset jack at the back of the phone
In order to use a headset, some phones need to activate headset function or program a headset key on the phone's keypad.
How to activate headset function on Mitel phones
How to use headset with NEC phones
How to setup OvisLink wireless headsets with different telephones
Polycom Phone Echo Cancellation Function for Headset
How to enable Polycom phone's Echo Canceling function for headsetInstruction for Visbr Active Noise Canceling Headphones
2.5mm Headset Common Issues and fixes
Use Headset on Mitel Phones
In order to use a headset, some Mitel phone models need to activate headset function on the phone; some Mitel models need to program a headset key on the phone's keypad. Click here the read detail instruction for your Mitel phone model
Use Headset on NEC Phones
NEC phones do not use speaker key for headset. In order to use a headset connected to the phone, many NEC phone models need to program a headset on the phone's keypad. Click here the read detail instructions for program a headset key on different NEC phone models.