The TC400B is a bundle of the half-length, low-profile PCI-2.2
compliant TC400P base card and the TC400M voice processing module. The
TC400B is designed to perform, in dedicated DSP resources, the complex
codec translations for highly compressed audio as would otherwise be
processed by Asterisk® in software on the host CPU.
Asterisk,
in software and with Digium® G.729a licensing, is capable of
transforming the G.729a codec into other codecs for the purposes of
call origination or termination, bridging disparate calls or VoIP to
TDM connectivity. These transformations in software are very expensive,
in terms of MIPS, and require a substantial amount of CPU time to
accomplish. The TC400B not only relieves the CPU of this duty, freeing
it up to handle other tasks or to complete additional call processing;
but also provides Asterisk with the capability of transforming G.723.1
compressed audio into other formats, a capability not previously
possible.
The TC400B decompresses G.729a (8.0kbit) or G.723.1
(5.3kbit) into ?-law or a-law; or, compresses u-law or a-law into
G.729a (8.0kbit) or G.723.1 (5.3kbit). The TC400B is rated to handle up
to 120 bi-directional G.729a transformations or 92 bi-directional
G.723.1 transformations. The TC400B does not require additional
licensing fees for the use of these codecs nor does it require the
registration process associated with Digium’s software-based G.729a
codec licensing.
Features
TC400M Voice Processing Module
- Half-Length Low Profile PCI 2.2 Card
- Codec Licensing and Indemnification
- 120 G.729a Transcodes
- 92 G.723.1 Transcodes
Requirements
- Zaptel 1.2.13 or greater and Asterisk® 1.2.15 or greater or
- Zaptel 1.4.1 or greater and Asterisk® 1.4.1 or greater
- Linux Kernel 2.6
- Available PCI Slot
Target Applications
- Media Gateway
- Conferencing Server
- IVR Server
- Distributed Office PBX
- Call Centers
Codec Support
G.729a (8.0kbit)
G.723.1 (5.3kbit)
?-law
a-law
