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Abbreviation for session initiation protocol.

The applied standard in Telesis systems is RFC 3261.

Telesis systems integrate both packet and circuit switching technology. A Telesis system featuring an integrated SIP registrar/proxy/server provides an economical way for administrators to manage a central database of phone numbers without the expense of a separate-box registrar/proxy/server solution.

Telesis systems can register to multiple SIP registrars/proxies/servers at the same time. This allows address resolution of a Telesis system from either side and results in flexibility for multipath VoIP access applications.

Telesis systems support numerous SIP users (entities) which can be user agents or registrars/proxies/servers. Number/IP translation is performed through advanced routing algorithms. Together with the integrated registrar/proxy/server, call authorization, call management, enhanced billing functions, flexible routing algorithms, and extensive business telephony features make a Telesis system serve as a feature-rich communication platform.

Connecting to the long distance call operator can be both over TDM and IP at the same time. The Telesis system may register at the external registrar/proxy/server of the operator as an option. With the advanced routing algorithms and alternate routing capability, TDM calls from a terminal equipment connected to the system may be routed to a selected operator over the IP or PSTN. Alternate routing capability provides automatic fall back to the PSTN if the IP network is inaccessible.

Furthermore, it is possible to define which release causes stated in SIP response codes will lead to the alternate routes being used.

Another SIP related feature powering Telesis systems is the embedded WepPhone service. Telesis WebPhone is a SIP softphone or client applet hosted in Telesis IP PBX, Telesis TDM - IP telephony systems, Stillink access gateways and Stillink signaling converters. The applet can be run from any Java enabled web browser. Since it is a standard Java applet, no software installation is required or no plugin is installed. The applet is just loaded temporarily onto the client`s browser. It can be used wherever is an access to the Internet. A web browser, a microphone, and a headset are sufficient to make calls.

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Page last modified on April 20, 2011, at 02:41 AM EST
Subject to change without any notice. All rights reserved 2010 - Telesis A.S.
Iskitler Cad. No.68 Ankara, TURKEY. Tel: +90 312 3840540 Fax: +90 312 3840549