Hello ssmith,
one quick way of checking if the phone is still registered to the SIP Provider is:
Press the Menu Key => select Status => select Lines
this menu will offer you now either the Line Information or the Server Status
Both of the above should provide you with a countdown Information showing the registration/subscription to the SIP Server.
If above show nothing or no registration Information the Phone lost it's connectivity to the SIP Server.
You need to ensure that the Phone's IP can still communicate via your Network with your SIP Provider.
This requires some network knowledge and is outside the scope of the Support provided by Polycom Employees within this community but includes port forwarding and firewall rules and other settings usually set on a Router.
Members of the Community itself are welcomed and encouraged to provide further troubleshooting.
Best Regards
Steffen Baier
Polycom Global Services
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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. All posts and words are my own & do not represent the views of Employer.
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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
