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Polycom phone

Occasional Visitor

Polycom phone

I have a Polycom phone that I am using at my home office as VOIP. I was able to previously receive and answer phone messages on it using AT&T UVerse.


I have now switched office where I am now using this phone when the office has Grandstream phones. I have also switched internet providers to Charter. I can receive messages on it but the phone does not ring so I can't answer any phone calls.  I'm not sure if the problem started occuring when I changed offices or changed internet providers. I do think that the problem may have occurred after a minor electrical outage. He did reset it once but it lost it's connection again. 


The IT guy for the office told me I would need to get a Static Ip address. The phone worked fine before with no cost but now I need  a Static IP address? This defeats the purpose of VOIP at my house as a reduction in cost. 


Is the IT guy missing something?Is it the problem of combining a Polycom phone with a Grandstream system? Is it changing internet providers?


Does anyone have any solutions on how to correct the problem? Tell me what questions I need to ask to get this corrected.


Thanks for your help!

Message 1 of 3
Polycom Employee & Community Manager

Re: Polycom phone

Hello Terrysmiths,

welcome to the Polycom Community.

The community's VoIP FAQ contains this post here:

Oct 7, 2011 Question: How can I check out the Registration Status of my Phone?
Resolution: Please check => here <=\




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

Resolution: Please check => here <=





Jan 19, 2012 Question: How to troubleshoot Polycom VoIP related Issues?

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

Polycom Global Services

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 3
Occasional Advisor

Re: Polycom phone

you dont need a static address...


Couple things to check..


1. the router from Charter.. make sure SIP ALG is disabled

2. Under the SIP Outbound proxy, might need to change that to UDP only..


Message 3 of 3