The provisions of this Recommendation apply to intermediate storage devices connected to a national telex network identified by individual telex addresses which are part of the national telex numbering plan. This Recommendation recognizes that currently implemented intermediate storage devices may not conform to these provisions. However, there would be advantages if existing equipment complied with the requirements of this Recommendation where possible, but that in any case new equipment should comply in order to maintain the quality of the international telex service. The provisions of this Recommendation have particular application within the interworking scenarios described in the F.80- and U.200-Series Recommendations.