V.25bis

V.25bis

An ITU standard (1968) for automatic calling and/or answering equipment on dial-up lines. It has three modes: asynchronous (rarely used), character-oriented synchronous (bisync) and bit-oriented synchronous (HDLC/SDLC). Both synchronous versions were used in IBM AS/400 and other small-to-medium sized computers that did automatic dialing for remote job entry.

Due to the popularity of the Hayes AT Command Set, V.25bis is not used as widely in North America. It does not perform modem configuration functions and is limited to dialing and answering calls. See AT command set.
References in periodicals archive ?
The MT1932BL uses industry-standard "AT" commands for modem configuration and dialing, supports V.
Supported dial-up devices include ADTRAN's DSU IIIAR, ISU 128, and ISU 512; ASCEND's VSX/BRI and MultiBand Plus; Madge/Teleos' Model 60; and other manufacturers providing synchronous V.
Supported dial-up devices include ADTRAN's DSU IIIAR, ISU 128, and ISU 512; ASCEND's VSX and MultiBand Plus; Madge/Teleos' Model 60; and other manufacturers providing synchronous V.
Once the WG-ZR100 is installed in Panasonic's WG-AV120 codec, dialing is simplified through the menu-driven Graphical User Interface with V.
o Circuit Set-up configures data compression, defines the association between the configured links and interfaces via defining circuit protocols such as PPP, V.