I think it must be some thing was wrong in your environment. Can you test this simple code on your sandbox environment. You can try with and without the param "?detailedTelephonyState=true".

var SDK = require('ringcentral')



RINGCENTRAL_CLIENTID = ''

RINGCENTRAL_CLIENTSECRET = ''

RINGCENTRAL_SERVER = 'https://platform.devtest.ringcentral.com'



RINGCENTRAL_USERNAME = ''

RINGCENTRAL_PASSWORD = ''

RINGCENTRAL_EXTENSION = ''



var rcsdk = new SDK({

      server: RINGCENTRAL_SERVER,

      appKey: RINGCENTRAL_CLIENTID,

      appSecret: RINGCENTRAL_CLIENTSECRET

  });

var platform = rcsdk.platform();

var subscription = rcsdk.createSubscription();



platform.login({

      username: RINGCENTRAL_USERNAME,

      password: RINGCENTRAL_PASSWORD,

      extension: RINGCENTRAL_EXTENSION

      })

      .then(function(resp) {

          subscribe_for_presence_notification()

      });



function subscribe_for_presence_notification(){

    var eventFilters = [

      '/restapi/v1.0/account/~/presence?detailedTelephonyState=true'

    ]

    subscription.setEventFilters(eventFilters)

    .register()

    .then(function(subscriptionResponse) {

        console.log("Ready to receive all users' presence status via PubNub.")

    })

    .catch(function(e) {

        console.error(e);

        throw e;

    });

}



subscription.on(subscription.events.notification, function(msg) {

    console.log(msg.body);

});

@Phong Vu Thank you for the help, this piece of code wasn't working either, going through articles I suspected the permissions I had ("ReadCallLog" and "ReadAccounts" as mentioned in the tutorial) for the ringcentral app might be bit off and after I added the "Read Presence" permissions the code you sent started to work I also ran some tests to make sure this actually is the issue. If I may, I'd like to suggest updating the tutorials to dictate to also include adding the "Read Presence" permission to help first timers like myself.