AudioCodes Enabling Technology Products
The AC4880x is an ideal low cost voice processing engine for a variety of
Voice over IP, Voice over DSL and other voice over packet client applications.
The AC4880x VoP processor is a one or two port voice over packet processor
that combines toll quality low bit rate voice compression, T.38 compliant fax
relay and other voice band processing functions. Field-proven, feature-rich
software enables the rapid development and fast time-to-market of the
complete solution.
Deliver Feature-Rich Solution
The AC4880x voice over packet processor combines one or two channels of
toll quality low bit rate voice compression, with an adaptive G.168-2000
compliant echo canceller, and complete voice band processing functions in
a single device. Field-proven G3 Fax Relay, compliant with the T.38 ASN.1
standard, is a major enhancement to the AC4880x offering. Other advanced
features include dynamic packet size programming, high quality DTMF/MF
R1/MF R2/Call Progress Tones, detection and generation of user defined
tones and Caller ID, silence suppression, and automatic voice/fax/data
discriminator.
Fast Integration with Software Stacks
The AC4880x is supported by the VoicePacketizer
TM
software stack which
enables the processor to create a VoIP-compliant media stream as part of
a client entity. The VoicePacketizer
TM
is an ANSI-C software stack that supports
the RTP/RTCP protocol. The software stack also provides a simple API for
initialization and configuration of the AC4880x and for run-time call control.
Software Upgrades
The complete functionality of the AC4880x is implemented in the internal
DSP software. The software image is downloaded into the AC4880x by the
host processor prior to start of operation. This allows the addition of new
features in future product releases without any system hardware modifications.
Benefit from Extensive Experience
AudioCodes is one of the world's leading providers of DSP solutions since
1996. During this period, the company successfully passed numerous
interoperability tests while maintaining high levels of performance. AudioCodes'
commitment to innovation yields consistently high-quality voice processing
products that are feature-rich and field-proven. AudioCodes has deployed
close to 10 million VoP ports to date.
AC4880x Features
Direct replacement for AC48301/2
Low bit rate Vocoders
Low power consumption & small footprint
G.168-2000 compliant Echo Canceller
T.38 and FRF.11 compliant Fax Relay
In Band Signaling detection & generation
Caller ID detection & generation
Low per-channel cost and power
Independent channel operation
Toll quality voice compression
Robust bandwidth-saving fax relay
Small footprint
Proprietary evaluation & development tools
AC4880x
Voice over Packet Processor for Client Applications
AudioCoded
*
Platforms for Enhanced Voice Services
2003 AudioCodes Ltd. All rights reserved. AC, AudioCodes, AudioCodes
logo, AudioCoded, IPmedia, Mediant, MediaPack, MP-MLQ, NetCoder,
Stretto, TrunkPack, VoicePacketizer and VoIPerfect are trademarks or
registered trademarks of AudioCodes Ltd. All other marks are the property
of their respective owners. The information and specifications in this
document and the product(s) are subject to change without notice.
Ref # LTRT-00229 10/03 V.4
Applications
IP-Phone and Key-Phone
SOHO Voice/data/fax Access Devices
DSL Access Devices
Cable Telephony Access Devices
Voice-enabled Set-top Boxes
About AudioCodes
AudioCodes Ltd. (NASDAQ: AUDC) enables the
new voice infrastructure by providing innovative,
reliable and cost-effective technology, products
and system solutions to network equipment
providers and system integrators. AudioCodes
provides its customers and partners with a
diverse range of flexible, comprehensive voice-
over-packet media gateway and media
processing technologies and systems, leading
the transition to converged voice and data
communications networks. The company is a
market leader in voice compression technology
and the key originator of the ITU G.723.1
standard for the emerging Voice over IP market.
AudioCodes product lines include media
gateway system solutions for packet networks
in the wireline, wireless, broadband access,
media server and enhanced voice services
markets, as well as enabling technology
products such as VoIP communication boards,
VoIP media gateway modules and CPE devices.
International Headquarters
4 HaHoresh Street
Yehud, Israel 56470
Tel: +972-3-539-4000
Fax: +972-3-539-4040
US Headquarters
2890 Zanker Road, Suite 200
San Jose, CA 95134
Tel: +1-408-577-0488
Fax: +1-408-577-0492
AudioCodes Offices Worldwide
Boston, Chicago, Beijing, Tokyo, Paris
info@audiocodes.com
www.audiocodes.com
AudioCodes Enabling Technology Products
Software Specifications
Channel Density
One or two low bit rate
Voice Coders
G.729 A CS-ACELP at 8 kbps
G.723.1 MP-MLQ at 6.3 kbps, ACELP at 5.3 kbps
G.727 E-ADPCM at 16-40 kbps
G.726 ADPCM at 16-40 kbps
G.711 PCM (-Law/A-Law) at 64 kbps
GSM 6.10 FR at 13 kbps
NetCoder
at 6.4-9.6 kbps, 800 bps steps
Optional: G.728 LD-CELP at 16 kbps
Voice/Fax/Data
Automatic switching
Fax Support
G3 2.4 - 14.4 kbps, T.38 compliant fax relay or automatic switch to PCM
Modem Support
Up to V.92 rates, automatic switch to PCM
Echo Canceller
G.168-2000 compliant
25 msec tail length
Caller ID Detection
Bellcore Type 1 & 2,
and Generation
ETSI Type 1 & 2
NTT Number Display
In-band Signaling
DTMF (TIA 464B), MFR1,
Detection and Generation
MFR2, AC15, SS4, SS5,
User Defined and Call Progress tones
Out-of-band Signaling
CAS ABCD (when connected to Standard Framers)
E&M Sampling Resolution
1 msec
Input/Output Gain Control
-31dB +31dB, 1.0 dB steps
Hardware Specifications
PCM Interface
2.048, 4.096 or 8.192 Mbps,
-Law/A-Law (selectable)
Host Port Interface
8 bit Bidirectional
Power Supply
+1.8V (core), +3.3V (I/O)
Digital Interface Levels
3.3V logic compatible
Power Consumption
180 mW (typ)
Package
144 pin TQFP
Specifications
AC4880x
PDF 
ZIP