SIS SS 63 63 32-1989
Telecommunications equipment — Private Branch Exchanges (PBXs) — Signalling requirements in digital interface for in- coming exchange line

Standard No.

SIS SS 63 63 32-1989

Release Date

1989

Published By

SE-SIS

Latest

SIS SS 63 63 32-1989

SIS SS 63 63 32-1989 history

• 1989 SIS SS 63 63 32-1989 Telecommunications equipment — Private Branch Exchanges (PBXs) — Signalling requirements in digital interface for in- coming exchange line