Private company

TELES

Logo: Injas, CC BY-SA 4.0, via Wikimedia Commons4

Manufacturer of communications solutions based in Berlin1

TELES AG Informationstechnologien is a provider of equipment and services to fixed, fixed-mobile convergence, and Next Generation Networking (NGN) service providers. The company was founded in 1983 as TELES GmbH by Professor Dr.-Ing. Sigram Schindler in close cooperation with Technische Universität Berlin.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1983Founded1
  • IndustryICT, information and communications technology1
  • HeadquartersBerlin1
  • Websitewww.teles.com/teles.html
  • Legal formAktiengesellschaft1
  • LEI3912004NQTDPHAZYTQ563
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressOrdensmeisterstraße 15-16, 12099 Berlin, Germany3
  • Registered withLocal Court Berlin-Charlottenburg, HRB 607813

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TELES AG Informationstechnologien is a provider of equipment and services to fixed, fixed-mobile convergence, and Next Generation Networking (NGN) service providers.2

The story

1990 ISDN product development

1992 ISDN PBX development

1993 Least-Cost-Router development

1996 First major VoIP patent - IntraSTAR dynamic PSTN fallback

1998 TELES is floated on the stock market and becomes an AG (public limited company)

1998 Introduction of clustered switching system for PSTN

2000 First public network integrating VoIP using H.323 protocol

2001 First highly integrated GSM and CDMA mobile gateway developed

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2002 First integrated mobile VoIP gateway developed

2003 First centralized SIM server for mobile gateways developed

2004 STRATO AG, a webhosting TELES subsidiary, is sold to Freenet

From Wikipedia’s article on TELES, shared under CC BY-SA 4.0.5

Acquisitions

  1. 1998Acquired Strato GmbH1

Timeline

  1. 1983Founded Founded1

Sources

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