typedef struct {
  VMCHAR apn[VM_GSM_GPRS_APN_MAX_LENGTH + 1];
  VMBOOL using_proxy;
  VM_GSM_GPRS_PROXY_TYPE proxy_type;
  VMCHAR proxy_address[VM_GSM_GPRS_APN_MAX_PROXY_ADDRESS_LENGTH + 1];
  VMUINT16 proxy_port;
  VMCHAR proxy_username[VM_GSM_GPRS_APN_MAX_USERNAME_LENGTH + 1];
  VMCHAR proxy_password[VM_GSM_GPRS_APN_MAX_PASSWORD_LENGTH + 1];
} vm_gsm_gprs_apn_info_t;