ISDN Software
The upper end of this software can provide a V.110, V.120, V.14, HDLC, or a direct binary framing layer.
This software can be combined with analog data modulations (V.90, V.34, V.32bis/V.32 and V.22bis/V.22/V.23/V.21)
to implement a digital modem with analog compatibility. Compatible with VOCAL controller firmware for data protocols and command set controls.
VOCAL's embedded software libraries include a complete range of ETSI / ITU / IEEE compliant algorithms,
in addition to many other standard and proprietary algorithms. Our software is optimized for execution on ANSI C
and leading DSP architectures (TI, ADI, AMD, ARM, CEVA, LSI Logic ZSP, and MIPS). These libraries
are modular and can be executed as a single task under a variety of operating systems or standalone with its own microkernel.
Features
- IO/M-2/GCI/ST Frame Assembly/Disassembly
- IO/M-2/GCI/ST 2B + D Multiplexing
- V.110 Rate Adaptation
- Bonding implementation of 2 or 6 B channels for 128 to 384 kbps aggregate throughput
- Q.921 LAPD Data Protocol Optional
- Q.931 Call Control Optional
- Q.922/Q.932 Switch Circuit Frame Relay Optional
- U.S. National ISDN Call Control Optional
- Modular software suite available with controller code
- Optimized for high performance on leading edge DSP architectures
- Multi-tasking environment compatible
Configurations
- V.110, V.120, V.14, HDLC and direct binary framing layer
- Can be combined with analog data modulations (V.90, V.34, V.32bis et al.)
- Can be combined with analog facsimile modulations (V.34fax, V.17 et al.) and protocols (T.30)
- Can be combined with analog telephony functions including speakerphone
- Compatible with Siemens, Motorola and National U interface chips
- Frame Relay/PPP Terminal adapter
