# TELES

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For other uses, see [Teles (disambiguation)](/source/Teles_(disambiguation)).

**TELES [AG](/source/Aktiengesellschaft) Informationstechnologien** is a provider of equipment and services to fixed, fixed-mobile convergence, and [Next Generation Networking](/source/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](/source/Technische_Universit%C3%A4t_Berlin). Professor Schindler lectured in telecommunications at the university until 1998.[citation needed] In 1997, he was voted High-Tech Manager of the Year by Manager Magazine in Germany.[1]

Active in [VoIP](/source/VoIP) technology development since 1996, the company's main development and operational focus lies in the areas of [IMS](/source/IP_Multimedia_Subsystem) and NGN.[citation needed]

TELES supplies service providers with complete Class 4 and Class 5 NGN [Softswitch](/source/Softswitch). TELES NGN is a standard based, scalable architecture aimed at minimizing integration time and allowing quick deployment. It includes hosted voice functionality which enables residential VoIP services, hosted [PBX](/source/Private_branch_exchange) (IP Centrex) services, Fixed-Mobile-Convergence, [IP](/source/Internet_Protocol) Trunking, and additional value added applications. Classical NGN/[PSTN](/source/Public_switched_telephone_network) applications like Wholesale, Long Distance, and NGN backbone services are also available with this.[2]

The TELES product portfolio also includes [VoIP gateways](/source/VoIP_gateway) and mobile gateways for [GSM](/source/GSM), [CDMA](/source/Code_division_multiple_access), and [UMTS](/source/Universal_Mobile_Telecommunications_System) networks.[3]

## History

- 1990 [ISDN](/source/Integrated_Services_Digital_Network) product development[citation needed]
- 1992 ISDN PBX development[4]
- 1993 Least-Cost-Router development
- 1996 First major VoIP patent - IntraSTAR dynamic PSTN fallback[5][6]
- 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](/source/H.323) protocol
- 2001 First highly integrated GSM and CDMA mobile gateway developed
- 2002 First integrated mobile VoIP gateway developed
- 2003 First centralized SIM server for mobile gateways developed[7]
- 2004 STRATO AG, a webhosting TELES subsidiary, is sold to [Freenet](/source/Freenet_AG)[8]

## References

1. ["About us » Management Board » Prof. Dr.-Ing. Sigram Schindler, CEO - TELES"](https://web.archive.org/web/20081017140450/http://www.teles.de/en/about-us/management-board/). Archived from [the original](http://www.teles.de/en/about-us/management-board/) on 2008-10-17. Retrieved 2008-10-27.

1. ["Products & Solutions » Next Generation Networks - TELES"](https://web.archive.org/web/20081103112725/http://www.teles.de/en/products-and-solutions/next-generation-networks/). Archived from [the original](http://www.teles.de/en/products-and-solutions/next-generation-networks/) on 2008-11-03. Retrieved 2008-10-27.

1. ["Products & Solutions » Access Gateways - TELES"](https://web.archive.org/web/20081021053521/http://www.teles.de/en/products-and-solutions/access-gateways/). Archived from [the original](http://www.teles.de/en/products-and-solutions/access-gateways/) on 2008-10-21. Retrieved 2008-10-27.

1. ["Teles AG"](http://kimbaone.de/000001985c0a4f46e/03c19899e014aa701/03c19899e1003451d/index.php4). [Archived](https://web.archive.org/web/20090120123748/http://kimbaone.de/000001985c0a4f46e/03c19899e014aa701/03c19899e1003451d/index.php4) 2009-01-20 at the Wayback Machine. (in German)

1. [Unknown](http://www.arcadiz.com/content/assets/suppliers/Teles/VoIPBOX_BR.pdf)[dead link]

1. ["Teles wins VoIP patent, announces infringement cases"](http://www.telecom.paper.nl/news/article.aspx?id=100355&nr=). [Archived](https://web.archive.org/web/20110813115752/http://www.telecompaper.com/news/teles-wins-voip-patent-announces-infringement-cases) 2011-08-13 at the Wayback Machine.

1. ["Method for transmitting data in a telecommunications network and switch for implementing said method - US Patent 7145902"](https://web.archive.org/web/20071019231251/http://www.patentstorm.us/patents/7145902.html). Archived from [the original](http://www.patentstorm.us/patents/7145902.html) on 2007-10-19. Retrieved 2008-10-28.

1. ["Heise online"](http://www.heise.de/english/newsticker/news/54200). 15 October 2023.

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Adapted from the Wikipedia article [TELES](https://en.wikipedia.org/wiki/TELES) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/TELES?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.