ITU-T Q.315-1988
PCM Line Signal Sender (Transmitter) - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp

Standard No.

ITU-T Q.315-1988

Release Date

1988

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T Q.315-1988

Scope

In some existing designs, the initial cut may be a physical line disconnection but the filter must be inserted within 100 ms of tone reception.

ITU-T Q.315-1988 history

• 1988 ITU-T Q.315-1988 PCM Line Signal Sender (Transmitter) - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp