-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Poly Phones
- Desk and IP Conference Phones
- Re: Unable to answer calls using EHS APP-51

Create an account on the HP Community to personalize your profile and ask a question

07-11-2023 07:58 AM
I have a Poly CCX500 running on version 7.0.2.1072 and am trying to use an EHS App-51 cable with my Plantronics C054 headset to no avail. I should be able to pick up calls by hitting the headset button but it is not working. I get dial tone only by pushing the headset button on my phone. I have hookswitch mode set to Poly EHS, have tried unplugging multiple ways. HELP!
07-11-2023 09:03 AM
Hello @justinelong ,
The community contains individual sections dealing with the different products we offer Voice, Audio/Video, UC Infrastructure, or Others.
Your post or the post you replied to was placed into an incorrect section and has therefore already been moved.
You are not using a currently supported software version so please upgrade to PVOS 8.1.2 or if you have to be on a 7.x.x update at least to UC Software 7.3.2
Best Regards
Steffen Baier
Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
If you need immediate and/or official assistance for former Poly\Plantronics\Polycom please open a service ticket through your support channels
For HP products please check HP Support.
Please also ensure you always check the General VoIP , Video Endpoint , UC Platform (Microsoft) , PSTN