Plantronics + Polycom. Now together as Poly Logo

Polycom Trio H.323

Occasional Contributor

Polycom Trio H.323



I have a Τrio 8800 running version


Trio is in hybrid registration, Skype for business base profile and at the second line i disabled SIP and enabled H323


I can make an outbound call with H.323 protocol from line 2 but when i call Trio from another H.323 endpoint it does not ring at all and as a result the call is not established.


The calls made in LAN environment( no need for port forwarding or gatekeeper). Is this is a bug on firmware version or i am  still missing some configuration?


Thank you in advance for your time and responses.

Best regards,





Message 1 of 2
Polycom Employee & Community Manager

Re: Polycom Trio H.323

Hello @giannisd ,


Welcome back to the Poly Community.

Usually, without any form of a log or even a backup, it is hard to comment.

Please ensure you always check the FAQ's and/or utilize the community search before posting any new topics or follow up posts.


Sep 27, 2019 Question: Does a Poly Trio support H.323?

Resolution: Please check >here<

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

<======== Signature / Disclaimer ========>
Please be aware:For questions about the type of support to expect please check here

Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

Please remember, if you see a post that helped you , and it answers your question, please mark it as an "Accept as Solution".

The title Polycom Employee & Community Manager is an automatic setting within the community and any forum reply or post is based upon my personal experience and does not reflect the opinion or view of my employer.
Poly employee participation within this community is not mandatory and any post or FAQ article provided by myself is done either during my working hours or outside working hours, in my private time, and maybe answered on weekends, bank holidays or personal holidays.
Message 2 of 2