• ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
HP Recommended

This is very strange problem. I have 5 sets of 335 phones at this locaton which has Verizon DSL. it has worked for 3 months. About 2 weeks ago it stopped registering. so what I did is:

 

1. bring these phones to another locaton which has Cable service, and they worked without any setting changes. I thought that it might be router problem so I switched routers between the 2 sites, but location that uses verizon dsl will not work.  .

2. thinking the verizon might block sip. so I tried using softphone X-lite( also using sip) and it work. 

 

I can't figure out why this happen. It just does not make any sense.  Can someone give me help?

 

2 REPLIES 2
HP Recommended

Hello vlp99,

 

welcome to the Polycom Community.

 

Did you check with Verizon Support if they changed anything on their Network End as the Phone clearly works as you already verified.

 

I would assume that X-Lite [Edit by Mod] may not register to Port 5060 or something else but only a wireshark trace or a look at the logs would tell.

 

Please check the FAQ.

 

Best Regards

 

Steffen Baier

 

Polycom Global Services

------------------------------------------------
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
HP Recommended

I did use wireshark. at phone site I can see that polycom phone is generation some info. but at server site nothing.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.