Product category:
CompactPCI Boards and Assemblies
News Release from: Aculab | Subject: IP telephony cPCI card
Edited by the Electronicstalk Editorial
Team on 26 November 2002
IP telephony card shows up in Hong Kong
At Telecom Asia 2002, Aculab will launch its IP telephony cPCI card.
At Telecom Asia 2002, Aculab will launch its IP telephony cPCI card For computer telephony developers and system integrators who are seeking to implement conversation quality speech over IP networks, this standards based card offers up to 120 channels with low latency using H.323 or SIP in a single slot
This article was originally published on Electronicstalk on 31 Jan 2003 at 8.00am (UK)
Related stories
Speech technology on show at CeBIT
At CeBIT 2003 Aculab will highlight text-to-speech enhancements, its new speaker verification speech technology and its IP telephony cPCI card.
IP gateway card is easy to listen to
Aculab has launched a 30-channel IP telephony gateway PCI card.
Aculab's card offers the essential performance features necessary for telco grade products, plus scalability to build a single gateway with multiple cards, optimal use of channels and fully specified performance characteristics.
Ease of use is assured through a simple extension to Aculab's generic API.
Alternatively, for developers seeking to employ the card as a real time protocol (RTP/RTCP) resource for use with a third party or proprietary protocol stack, for example, an additional API is available, which provides control of the card as a media gateway.
Further reading
DSP-based speech synthesis speaks five languages
Aculab has unveiled the latest version of its highly acclaimed free text-to-speech (TTS) software, which now features five languages, and runs on its Prosody DSP resource cards.
DSP-based speech processing aids teleconferencing
A revolutionary teleconferencing system that puts blind and partially sighted people in touch with each other has been developed for the RNIB by Chelston Call Systems.
Aculab's IP telephony card has sufficient power to simultaneously handle up to 120 channels using any supported codec: G.711; G.723.1; G.729 (A and B).
There is a free allocation of any of the above codecs on a per channel basis ensuring full usage at all times.
With no adverse loading to the host and minimal contribution to delay from the card, there is little impact on latency regardless of the number of cards used.
Users can select the number of codec frames to be included in each RTP packet, which allows for a trade-off between bandwidth overheads and delay.
Aculab's technology has been designed to minimise factors that impact conversation quality including delay, echo and background noise.
This leads to a reduced 'effort to listen' for users.
The IP telephony card is designed as a multiple class terminal to meet ETSI TIPHON quality of service ratings.
A system using an Aculab card allows best quality ratings to be achieved on a suitable LAN and high quality ratings to be achieved on a suitable WAN.
Participation in differentiated services (diff-serv) quality of service management for networks is facilitated by API access to specify the diff-serv code point (DSCP) in the type of service (TOS) byte in the IP header.
Therefore, it is possible to deploy an interoperable solution meeting high performance standards in a well-managed private network environment.
For developers seeking to provide IP telephony features in new solutions or to enhance existing applications and replicate existing functionality, Aculab has implemented several H.450.2 call transfer cases.
For more information about Aculab's IP telephony card and the rest of Aculab's product portfolio visit stand number 1220 at the Telecom Asia 2002 show, 2nd-7th December 2002 at the Hong Kong Convention and Exhibition Centre.
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