SOURCE: Tekelec

Tekelec

July 09, 2010 09:00 ET

Tekelec to Present at 2010 Multi-Conference in Computer Science, Computer Engineering, Information Technology and Control Engineering

SIP Expert to Discuss the Effects of Server Overload on SIP Performance

MORRISVILLE, NC--(Marketwire - July 9, 2010) -  Tekelec (NASDAQ: TKLC), the session and mobile data management company, will participate in the 2010 Multi-Conference in Computer Science, Computer Engineering, Information Technology and Control Engineering held July 12-14 in Orlando, Fla. Dr. Dorgham Sisalem, director of SIP signaling architecture at Tekelec, will present two papers dealing with aspects of SIP overload.

In his first paper, "A Theoretical Model of the Effects of Server Overload on the Performance of SIP," Sisalem examines SIP signaling performance in various server overload scenarios. Server overload can lead to problems such as a decrease in service quality or dropped calls. In the second paper, "VoIP Overload, a Sender's Burden," Sisalem discusses how to observe overload, as well as how to react to this issue in order to reduce the possibilities of lost calls. The paper presents a new approach called the Sender-based SIP Overload Control Algorithm (S-SOCA), which uses information delivered by its neighbors to estimate their overload status and adapts its transmission behavior based on this information.

Sisalem is responsible for the architecture of Tekelec's SIP Signaling Router. He co-founded iptelorg with Tekelec SIP expert and Assistant Vice President Jiri Kuthan in 2004. iptelorg, which Tekelec acquired in 2005, provided the voice over Internet protocol (VoIP) infrastructure for nearly all major German ISPs such as T-Online and Freenet. Sisalem received his Master of Science and Ph.D. from the Technical University of Berlin in 1995 and 2000, respectively.

For more information on SIP, please visit the Tekelec SIP Sessions blog, where Sisalem is a regular contributor. His most recent post focused on the subject on SIP and MEGACO protocol.

About Tekelec
Tekelec, the session and mobile data management company, enables billions of people and devices to surf, talk, and text. Our solutions allow service providers to dynamically manage network resources and services, while providing end users with a consistent and personalized customer experience. We handle the complexity of today's multi-generational and multi-vendor networks by enabling devices, protocols, services, and databases to securely and efficiently communicate with each other. Tekelec has more than 30 offices around the world serving more than 300 customers in more than 100 countries. For more information, please visit www.tekelec.com.

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