This can only be triggered via auto-provisioning: Create an XML file like the example below. Or click here to download. 
 
 <?xml version="1.0" encoding="UTF-8"?>
 <provisioning version="1.1" productID="e2">  
     <nvm>  
     <param name="DmGlobal.0.SupportSipRingtones" value="0"/>
      
     </nvm>
 </provisioning>
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 In the web-interface go to: SETTINGS - System - provisioning and configuration - Auto configuration file - Browse, select your file, upload and press Start auto configuration. FAQ Nx70 - Distinctive ring how to disable  |