C6x solutions for voice over IP gateway

Author

Cassing, Dave

Author_Institution

Telecommun. Div., RadiSys Corp., Hillsboro, OR, USA

fYear

1998

fDate

21-23 Oct 1998

Firstpage

74

Lastpage

85

Abstract

The primary function of a packet voice gateway is to provide the interworking function between traditional voice telephony links and packet network links. For example, an Internet telephony gateway performs a translation between compressed speech packetized in Internet protocol (IP) and pulse code modulated (PCM) speech over time division multiplexed (TDM) links. Voice gateways are devices which need to perform intricate digital signal processing functions and complex networking protocols. A state-of-the-art DSP-based architecture is presented which meets the challenges with fast industry leading processors, high bandwidth buses, and efficient operating systems support. This architecture gives gateway designers the full power, flexibility and tools to invent highly innovative and price competitive gateways with low risk of obsolescence

Keywords

Internet telephony; internetworking; packet switching; pulse code modulation; signal processing; time division multiplexing; transport protocols; voice communication; C6x solutions; DSP-based architecture; Internet protocol; Internet telephony gateway; PCM speech; TDM links; compressed speech; digital signal processing; efficient operating systems support; high bandwidth buses; interworking function; networking protocols; packet network links; packet voice gateway; pulse code modulation; time division multiplexing; voice over IP gateway; voice telephony links; Bandwidth; Digital signal processing; Internet telephony; Modulation coding; Phase change materials; Protocols; Pulse compression methods; Pulse modulation; Speech coding; Time division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Northcon/98 Conference Proceedings

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5075-8

Type

conf

DOI

10.1109/NORTHC.1998.731516

Filename

731516