ITU-T Q.110-1989
General Aspects of the Utilization of Standardized CCITT Signalling Systems on PCM Links - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp

Standard No.

ITU-T Q.110-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T Q.110-1989

Scope

Signalling Systems No. 4 and No. 5 are in-band signalling systems. It is not planned to specify modified versions of these systems for application to PCM transmission systems

ITU-T Q.110-1989 history

• 1989 ITU-T Q.110-1989 General Aspects of the Utilization of Standardized CCITT Signalling Systems on PCM Links - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp