Is this headset compatible with VoIP phones (Cisco IP 303)?
1068203
If the phone has a connector for an external headset (not just the handset connection) then it should be able to switch over to the headset for taking or receiving calls. It does have a handset output jack, so it can be daisy-chained with a normal handset (which would then have to be taken off-hook to init or answer a call). As for VoIP compatibility, this may help: https://supportforums.cisco.com/docs/DOC-9926 "Headset Compatibility for SPA303, SPA5xxG and SPA9xx Phones". According to the article, a special cord is needed to connect the Jabra unit to the Cisco 303, thus: Jabra Cordless Headsets require Connection cord 8800-00-75 to connect to SPA900 IP phones 2.5mm headset connector If the phone has a connector for an external headset (not just the handset connection) then it should be able to switch over to the headset for taking or receiving calls. It does have a handset output jack, so it can be daisy-chained with a normal handset (which would then have to be taken off-hook to init or answer a call). As for VoIP compatibility, this may help: https://supportforums.cisco.com/docs/DOC-9926 "Headset Compatibility for SPA303, SPA5xxG and SPA9xx Phones". According to the article, a special cord is needed to connect the Jabra unit to the Cisco 303, thus:... » Read More If the phone has a connector for an external headset (not just the handset connection) then it should be able to switch over to the headset for taking or receiving calls. It does have a handset output jack, so it can be daisy-chained with a normal handset (which would then have to be taken off-hook to init or answer a call). As for VoIP compatibility, this may help: https://supportforums.cisco.com/docs/DOC-9926 "Headset Compatibility for SPA303, SPA5xxG and SPA9xx Phones". According to the article, a special cord is needed to connect the Jabra unit to the Cisco 303, thus: Jabra Cordless Headsets require Connection cord 8800-00-75 to connect to SPA900 IP phones 2.5mm headset connector « Show Less
1068204
I'm not sure if this headset is compatible with the VoIP phone systems. We use these headsets with our Toshiba DKT2020-SD phones. We share a pipeline with phone and internet services. We will soon be looking into a VoIP system so this is a very good question.
1896050
I have not used it with a headset. But it works really well with my office phone.
1768467
No, the Cisco SPA-303 is not POE compatible, you will have to move to the 5XX series for that or the Yealink T22P which is my preferred phone to use.
465287
I actually don't know specifically about that phone. I have the super basic $25 ATT home phone. I did call them once had a bit of a challenge on understanding what phone was compatible with what headset. I would try calling Plantronics customer support and asking them if this headset is compatible with your specific desk phone. You may need the model number too. Hope this helps. I've had zero problems with the headset. I really like it.
1750576
no, It depends on what kind of phone you have. With Cisco 7940 it works fine without lifting headset
1857147
Yes the only way I could get it to work was to plug it into the handset jack. The headset only worked for three months. I don't know if I'd buy that one again.
998541
Yes, it works nicely with VOIP. That's what I use it for. You still need to have a Analog Telephone Adapter between the phone base and the network you are attached to.
1828686
I do not know. However, I use it with all Cisco series 7900 phones. Suggest you go to Cisco site and see if headsets that are compatible with 7900 series are also compatible with 300 series phones. Best I can do.
728423
I don't expect so. The Shoretel 560 is listed as incompatible in the Headset Buddy compatibility lists (http://www.headsetbuddy.com/known-compatibility-list/)
346891
This adapter only works with Cisco (but not all Cisco) phones. You need our PH25-RJ9A adapter: IP Headset Plug Adapter to RJ9/RJ10/RJ22 Headset - 01-PH25-RJ9A
1883817
The seller is pretty clear that it's not universal, it won't work on many non-Cisco phones and not-all Cisco phones are compatible.I'd have to say "buyer beware", since there's also a chance that your PC headset won't be compatible either. (does it use two plugs, or just one?)A quality, professional-grade headset (e.g., from Plantronics, Jabra, etc) is a good investment. If you're just looking for an alternative, and you already use a qualified headset, then consider this experimental.Also, the seller does note that they have another adapter that may have broader compatibility. (part no. 01-PC35-RJ9) Take a look there as well, and good luck! The seller is pretty clear that it's not universal, it won't work on many non-Cisco phones and not-all Cisco phones are compatible.I'd have to say "buyer beware", since there's also a chance that your PC headset won't be compatible either. (does it use two plugs, or just one?)A quality, professional-grade headset (e.g., from Plantronics, Jabra, etc) is a good investment. If you're just looking for an alternative, and you already use a qualified headset, then consider this experimental.Also, the seller does note that they have another adapter... » Read More The seller is pretty clear that it's not universal, it won't work on many non-Cisco phones and not-all Cisco phones are compatible.I'd have to say "buyer beware", since there's also a chance that your PC headset won't be compatible either. (does it use two plugs, or just one?)A quality, professional-grade headset (e.g., from Plantronics, Jabra, etc) is a good investment. If you're just looking for an alternative, and you already use a qualified headset, then consider this experimental.Also, the seller does note that they have another adapter that may have broader compatibility. (part no. 01-PC35-RJ9) Take a look there as well, and good luck! « Show Less
467188
I am 99% sure it will work. I looked up the Avaya 4621 IP phone and it appears that the headset plug in is the same as on the headset. It is also good quality. I have had this product for over two years with no complaints.
654290
i don't know, but I use it on my cisco 504 IP Phone SPA 504G because they said it work with them, but the microphone part of the headset doesn't register my voice. So, I only use them to listen to webinars--can't use them to talk to people, unfortunately.
1579470
I found this on the ATT website....Headset compatible (2.5mm jack) - I see the cover for the jack on my phone but haven't tried to open it cause I don't have a need for a headset...so my answer would be "YES"
677417
I disagree - I have this on a ShoreTel 560G, works perfectly with my Sennheiser Gamer ONE headset from home (VPN)
786791
You probably could use it as a VOIP headset with the right adapters. It's really intended for use with a dedicated dial pad. I would look for a cheaper solution for VOIP.
657323
No. The connector/plug for this headset is specifically designed for PA system wireless tranceivers.