I’m currently working on a Java project where I need to send an HTTP GET request to a Yealink IP phone.Working on a T57W IP Phone. I’m using the curl command to send the request, but I’m encountering some issues.

Here’s the curl command I’m using:

curl "http://<myphoneip>/servlet?key=OK."

tried other commands aswell like Volumeup im always getting this :
curl: The remote server returned an error: (401) Unauthorized.
At line:1 char:1

• curl “http:///servlet?key=VOLUME_UP.”

•   + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebExc
  eption
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
  
  
  

following the yealink doc ive set everything up in the phones backend
-ip is trusted
-CSTA is enabled
-firewall rules are set

tried : curl “http:///servlet?key=OK.”

expected smt like : StatusCode : 200

after recieving the first get request a pop up should appear on the phone to enable remote acces.

Might need some kind of authentication like username or password or my uri format is just wrong.

Thanks in advance guys !