question

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);
});