ITU-T Q.931-1993
(WITHDRAWN) Digital Subscriber Signalling System No. 1 (DSS 1) - ISDN User-Network Interface Layer 3 Specification for Basic Call Control - Digital Subscriber Signalling System No. 1 Network Layer Study Group XI; 323 pp; ETSI PRETS 300 403-1

Standard No.

ITU-T Q.931-1993

Release Date

1993

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Replace By

ITU-T Q.931-1998

Latest

ITU-T Q.931-1998

Scope

The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the International Telecommunication Union.

ITU-T Q.931-1993 history

• 1998 ITU-T Q.931-1998 ISDN user-network interface layer 3 specification for basic call control Study Group 11
• 1993 ITU-T Q.931-1993 (WITHDRAWN) Digital Subscriber Signalling System No. 1 (DSS 1) - ISDN User-Network Interface Layer 3 Specification for Basic Call Control - Digital Subscriber Signalling System No. 1 Network Layer Study Group XI; 323 pp; ETSI PRETS 300 403-1