Posts Tagged digium
Digium Releases TCE400B PCI-Express Transcoder Card
Digium TCE400B
Digium releases the TCE400B PCI Express card for use with voice applications based on the open source Asterisk telephony platform. The new card provides hardware-based voice compression and decompression (codec) capabilities to shift transcoding from software to hardware. Using the TCE400B in place of a software-only solution places fewer demands on servers and frees up Asterisk to more efficiently process calls and to provide functionality for phone systems such as call recording, conference calling and interactive voice response.
The TCE400B is a half-length, low-profile PCI-Express x1 card for transforming complex VoIP codecs into simple codecs. This product is, essentially, a PCI-Express version of Digium’s existing TC400B product.
DAHDI Linux and DAHDI Tools 2.2.0 Released
Posted by admin in astribanks, dahdi, dahdi-linux, dahdi-perl, dahdi-tools, digium, hardware, vpmadt032, xorcom on June 24, 2009
DAHDI - Digium Asterisk Hardware Device Interface
The Asterisk Development Team is pleased to announce the release of DAHDI Linux 2.2.0 and DAHDI tools 2.2.0. Both releases are available for immediate download at http://downloads.asterisk.org/pub/telephony
In addition to various bug fixes, these releases include:
- Support for new Xorcom Astribanks with the TwinStar ™ option.
- Improved hardware echo canceler performance for Digium VPMADT032.
- Improved fax tone detection and echo canceler / fax handling.
- Improved timing accuracy of dahdi_dummy, including when running in virtual environments.
- New buffering policy (DAHDI_POLICY_HALF_FULL) which can help faxing performance.
- Fixes for Dahdi-perl for non-Xorcom hardware.
- BRI Astribank modules no longer need the bri_dchan patch.
- Explicit ordering of Astribanks for multi-Astribanks setups.
Please report issues found in these releases on http://issues.asterisk.org/.
For a full list of the changes in these releases, please see the ChangeLog:
http://downloads.asterisk.org/pub/telephony/dahdi-linux/ChangeLog-2.2.0
http://downloads.asterisk.org/pub/telephony/dahdi-tools/ChangeLog-2.2.0
Thank you for your continued support of Asterisk!
Digium TC400B
Digium TC400B
The TC400B is a half-length, low-profile PCI 2.2-compliant card for transforming complex VoIP codecs into simple codecs.
Overview:
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 handle, in dedicated DSP resources, the complex codec translations for highly compressed audio as would otherwise be processed by Asterisk in software.
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 bridging 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 u-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.
TC400B Documentation:
Manuals
01.26.2007 – TC400B User’s Manual (PDF)
Datasheets & Brochures
07.01.2008 - TC400B Datasheet (PDF)
Agreements & Policies
08.02.2007 – Digium End-User Purchase and License Agreement (HTML)
Asterisk says Hello to Fax
If you ask Google about faxing for Asterisk, with the search keywords asterisk and fax, and you ask Google to omit similar entries, you’ll end up with 52 pages of results.
If you ask Google how many times fax has been mentioned on an Asterisk mailing list, by setting the site parameter to lists.digium.com, then Google tells you there are 1120 utterances.
Yesterday, if you asked Digium for help in faxing documents through Asterisk, we’d have apologized and said that we didn’t offer a fax solution for Asterisk.
That was yesterday.
Today, Digium is pleased to announce Fax For Asterisk.
Fax For Asterisk is a commercial facsimile (Fax) termination and origination solution designed to enhance the capabilities of Open Source and commercial Asterisk as well as Switchvox. Fax For Asterisk bundles a suite of user-friendly Asterisk applications and a licensed version of the industry’s leading fax modem software from Commetrex. Fax For Asterisk provides low speed (14400bps) PSTN faxing via DAHDI-compatible telephony boards as well as VoIP faxing to T.38-compatible SIP endpoints and service providers. Licensed on a per-channel basis, Digium’s Fax For Asterisk provides a complete, cost-effective, commercial fax solution for Asterisk users.
Wait, I’ve forgotten something…okay, not really. There’s also Free Fax For Asterisk. Free Fax For Asterisk provides a single-channel only, per Asterisk, version of Fax For Asterisk, for free. Want to use Free Fax For Asterisk now? Visit the Digium webstore and get a license, free of charge.
