code: public VoiceCallResponseList listAllVoiceCalls(Integer page, Integer pageSize) throws GeneralException, UnauthorizedException {
          String url = String.format("%s%s", VOICE_CALLS_BASE_URL, VOICECALLSPATH);
          return messageBirdService.requestList(url, new PagedPaging(page, pageSize), VoiceCallResponseList.class);
      }
docs: Function to list all voice calls
  
  @return VoiceCallResponseList
  @throws UnauthorizedException if client is unauthorized
  @throws GeneralException      general exception