View source for OPERATIONAL COMMUNICATION LINE

[[INDEX_A|A]] · [[INDEX_B|B]] · [[INDEX_C|C]] · [[INDEX_D|D]] · [[INDEX_E|E]] · [[INDEX_F|F]] · [[INDEX_G|G]] · [[INDEX_H|H]] · [[INDEX_I|I]] · [[INDEX_J|J]] ·
[[INDEX_K|K]] · [[INDEX_L|L]] · [[INDEX_M|M]] · [[INDEX_N|N]] · [[INDEX_O|O]] · [[INDEX_P|P]] · [[INDEX_Q|Q]] · [[INDEX_R|R]] · [[INDEX_S|S]] · [[INDEX_T|T]] ·
[[INDEX_U|U]] · [[INDEX_V|V]] · [[INDEX_W|W]] · [[INDEX_X|X]] · [[INDEX_Y|Y]] · [[INDEX_Z|Z]]
== Definitions ==

1. one on which [[COMMUNICATION|communication]] cycles can be [[COMPLETED|completed]] without the sender [[HAVING|having]] to [[WORRY|worry]] about the safe arrival of his messages at the other end.
''(FO 2528)''

2. a [[LINE|line]], internal or external, which is in use and on which no failures have occurred for the week, i.e., the telephone would count as one if it is working all week.
''(FO 1618)''