VOCAL Technologies, Ltd. modem software libraries include a complete range of ETSI / ITU / IEEE compliant modulations, optimized for execution on ANSI C and leading DSP architectures (ADI, ARM, BOPS, DSP Group, LSI Logic ZSP, MIPS and TI). This software is modular and can be executed as a single task under a variety of operating systems or it can execute standalone with its own kernel.
The three mayor features of V92 modem are Modem-on-Hold (MOH), PCM upstream (PCMU) and Quick Connect (QC). Each of these features can be used independently.
Depending upon the V92 modem configuration selected, the line interface may be an analog front end (codec and DAA) or a digital interface such as T1/E1, switched 56 and ISDN. The upper end of this software can provide PPP, V.14, HDLC or direct binary framing layers. Higher data protocol layers, such as, V.42 (including MNP 2-4), V.44, V.42bis and MNP5 are options as well.
This modulation family can be combined with other data modulations (V.90, V.34, V.32bis/V.32, and V.22bis/ V.22/V.23/V.21). V.8/V.8bis startup procedures can be used. All data modulation software is fully compatible with VOCAL’s facsimile, telephony, speech coder and multimedia systems.
CIO Research Library
