Telesoft International

About Us

Company History

TeleSoft International, Inc. was founded in 1992 to develop and market high-performance communications software and hardware for the digital communications market.

TeleSoft International, Inc. is privately held and self financed.

TeleSoft provides a continually expanding family of telecom and datacom protocol stacks, so that our customers can dramatically reduce their development time and while minimizing technical risk. TeleSoft engages in the full cycle of product development to better understand customer issues and provide proven solutions.

Company Advantages

Manufacturers license the TeleSoft CompactSIP and TsLink3 conformance-proven source code stacks to accelerate the development and conformance testingof their communications products.

Independent Developers gain a competitive edge by reducing their development time when they license telecom and datacom protocol stacks from TeleSoft International. Stacks available include support for VoIP, SIP, Worldwide ISDN, PPP, ML-PPP, T1 RBS, E1 CAS R2, QSIG, Frame Relay, AO/DI and X.25. Customers can license Q.921 LAPD or Q.931 LAPB individually or as an integrated stack. 

TeleSoft licenses well-proven source code for AutoSPID, Autoswitch Detection, NFAS, and D-Channel Backup in addition to DSS1 and other switch variants used worldwide.

Our Customers

TeleSoft customers are communications equipment manufacturers and service providers who build and supply products incorporating CompactSIP and TsLink3 PSTN software stacks and communications chips from companies such as AMD, ARM, Freescale, Lantiq (Infineon), Intel, Lucent, Maxim-Dallas, PMC Sierra and Zarlink. TeleSoft software saves these customers hundreds of thousands of dollars in development costs and significantly decreases their time-to-market for new products.

The current customer base includes more than 250 companies including Alcatel, AT&T, Avaya, Cisco, D-Link, EMS Satcom, Fujitsu, GTE, IBM, Interactive Intelligence, L-3 Communications, Lucent, Motorola, NEC, Nimbuzz, NTT, Polycom, Sangoma, TelcoBridges, Vodafone and ZyXEL. This customer base spans the world with licensees in North America, South America, South Africa, the Pacific Rim, and Europe.