tag:support.whistlephone.com,2010-02-09:/help/discussions/problems/111022-3rd-party-sip-accountWhistle: Discussion 2016-12-12T18:11:13Ztag:support.whistlephone.com,2010-02-09:Comment/414350992016-12-12T18:11:13Z2016-12-12T18:11:13Z3rd party sip account<div><p>you need a Premium account (the rate is 1.6 cents per minute),
You will get 20 minutes of whistle to whistle calls free.</p></div>Dawn