A method and apparatus facilitating access to a communication session for a client is provided. The method may comprise obtaining one or more call plan proposals, receiving a destination phone number for making a call on a wireless communications device (WCD) when the WCD is in a source country, determining the source country from which the call is to be made, determining a destination country code of the destination phone number, identifying each of the one or more call plan proposals available to the WCD in the source country, selecting a call plan proposal from the identified available call plan proposals, generating a destination number string, and executing the call using the destination number string. The destination number string can comprise the destination phone number combined with the destination country code and the country access code and the discount identifier code of the selected call plan proposal.