CAN/CSA-T512-M91 (R1999)
For the purposes of this standard, the PBX is considered to be a
device that performs switching functions between station
apparatus interfaces and between the station apparatus interfaces
on one side and central office (CO) and special trunk interfaces
on the other.
OEN:
CSA
Langue:
English
Code(s) de l'ICS:
33.040.30
Statut:
Annulée
Date de Publication:
1991-03-30
Numéro Standard:
CAN/CSA-T512-M91 (R1999)