The use and general aspects of the BSC to BTS interface (the A-bis interface) are given in Technical Specification GSM 08.51. This specification specifies the general structure of layer 3 and traffic management procedures and messages used on the A-bis interface to support signalling procedures as defined in Technical Specification GSM 04.08. Network management procedures and messages for the A-bis interface are defined in Technical Specification GSM 08.59.
IN_DEVELOPMENT
prSSH ETS 300 596:1995 ed.2
40.20
DIS ballot initiated: 12 weeks
Feb 9, 2026
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