This User Guide is written as general guide on how to set up the Yealink phone model SIP-W52Pto work with PBXware.RequirementsIdentifying phone modelTo start and successfully complete registration of your Yealink phone you need to know whichphone model you will setup.From the back of each Yealink phone there are exact model information that you should check.Although different phone models can have exactly the same requirements and installationprocedure, phone models can also have significantly different requirements and installationprocedure, so that ignorance of your own model may result in the inability to successfully set upyour phone. Identify Yealink Phone ModelPhone firmwareMake sure that your phone is loaded with appropriate firmware version.nSIP-W52P 26.50.x.xTo find out the firmware version of your Yealink phone model open a new browser window andnenter your phone IP address in order to access the phone web administration interface login