is not the TRA's present intention to issue any further Licences that would allow the holders of  such Licences to provide VoIP Services .  3.2 Where a Licensee believes that a VoIP Service is being provided by a person not licensed to  do so under the Law , over a Public Telecommunication Network operated by that Licensee , that  Licensee will be entitled to block that VoIP Service , unless instructed by the TRA to do  otherwise .  3.3 This Policy does not apply to the provision of VoIP Services exclusively over a Closed Group  Network .  3.4 Further , a VoIP Service may be provided by any person whether or not that person has a  Licence , where that VoIP Service is provided only between Users of a Closed Group Network .  3.5 The TRA may at its discretion issue VoIP Deployment Guidelines ..  4 . Conditions of Service for VoIP Services provided over Public  Telecommunication Networks  4.1 Unless the TRA provides otherwise , where a person is licensed to provide VoIP Services ,  that person shall provide those VoIP Services strictly in accordance with the Regulatory  Framework , insofar as it is relevant to the provision of Telecommunication Services allowing  real time voice communications between Users . For the sake of clarity this includes without  limitation , the Regulatory Framework regarding Numbering Resources , free - of - charge access  to emergency numbers , the provision of calling line identification , and directory services .  4.2 A Licensee may request the TRA to exempt the Licensee from complying with any aspect of  the Regulatory Framework as regards a VoIP Service or any feature of that service . To seek such  an exemption from the TRA , a Licensee will make an Application for Exemption to the TRA in  respect of the relevant VoIP Service or relevant feature of that VoIP Service . The TRA may in its  absolute discretion grant or refuse the exemption the subject of the Application , as it sees fit . In  considering the Application the TRA may but is not obliged to consider any of the following  matters :  ( a ) any technical features of the service ;  ( b ) the cost to the Licensee of complying with the Regulatory Framework or aspect of it the  subject of the Application for Exemption ;  ( c ) the price for the service charged by the Licensee to any User ;  ( d ) any substitutes or alternatives for the service available to Users for the service , and any  features of that alternative service ; and  ( e ) the effect on competition for any Telecommunication Service of granting or refusing to  grant the Application for Exemption .  5 . Quality of Service ( QoS )