The final factor, cost of supplementary services, provides a safeguard for schools so that they do not exceed spending on one particular student.

Supporting supplementary services such as conference calls or call hold.

Business service is mostly message rate local calling plans with extra charges for long distance and supplementary services.

Such supplementary services as the cleaning program in the central business district would be eliminated, however.

These supplementary services terminate at major intermediate points and are designated with the letter "E".

The French army (among others) created its own supplementary meteorological service as well, retraining scientists from other fields to staff it.

This supplementary service only survived a few years and was withdrawn after service on 23 November 1958.

Participating companies can earn money by selling supplementary services, like those for state returns.

After the time period has lapsed, map data updating is a supplementary service.

This supplementary service was withdrawn on 18 March 1941.