| 摘要 |
FIELD: automatic phone exchange equipment for small and middle capacity. SUBSTANCE: input communication units 5.1-5.m and output communication units 6.1-6. m have additional commutation units 3 and memory units 4 which are connected to first stage commutation units 1.1-1.n and to second stage commutation units 2.1-2.n . EFFECT: decreased number of deadlocks for basic users and communication almost without deadlocks for priority users which also have access to additional services. 1 dwg |
