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Occasional Visitor


Hi to everybody
we have just bought a Polycom CX5500. We would like to use it as telephone for audio-conference.
We are looking for a provider to get a VoIP number.
It is enough to put IP number in SIP on the device?
What are the steps to do?
How I can find a pdf with the instructions to do it?
Thanks a lot for your support




Message 1 of 2
Polycom Employee & Community Manager

Re: CX5500 SIP/VoIP

Hello Linde,

welcome to the Polycom Community.

The community's VoIP FAQ contains this post here:

Oct 7, 2011 Question: Can I register or is my Polycom Phone compatible with a “XYZ” SIP Server?

Resolution: Please check => here <=


If the CX5500 is using the latest Software Version 1.1.3 you will need to use HTTPS:// to login via the Web Interface.


Please check the FAQ before posting any follow up questions.

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

Best Regards

Steffen Baier

Polycom Global Services

<======== 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