lateral approach to SS7/VoIP over satellite
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lateral approach to SS7/VoIP over satellite

Dear members,

 

I was inspired to submit content in order to explore the potential for integration of NOP into current revised standards for transmission of SS7 over IP over satellite.

 

If this content is deemed too commercial for this readership kindly advise or direct me towards a more appropriate audience; a brief overview of the concept is included in the text below related to a joint development successfully completed with ESA (European Space Agency): The complete article is covered in the attached link, and a separate .xls file includes calculation parameters for NOP benefits over SIP and H323.

“WTL has an excellent track record in providing equipment for voice services using satellite trunking and has over 100 systems deployed around the world. The company’s key strength in this area has always been the superior bandwidth-saving capability of WTL’s patented NOP (Network Optimisation Protocol).

The Artes 4 contract provided joint funding for a series of developments designed to make WTL equipment perform an even better job for telecom operators wishing to use these emerging low cost satellite services. One aspect of the ESA project was to modify NOP to operate efficiently over DVB-RCS services. The lower price point of DVB-RCS equipment and space segment means that this is of great interest to operators, particularly in the developing world.”

 

Regards,

 

 

Rubin Rose

International Account Manager

Changing the way the World Communicates ............

World Telecom Labs

Diegemstraat 42

B-1930 Zaventem

Belgium

Telephone +32 2 722 7200

Fax +32 2 725 6006

Web http://www.wtl.be

Email rubin.rose at wtl.be

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--- Begin Message ---
Title: ESA Telecommunications: ESA Funded VoIP over Satellite Development helps African telecoms

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ESA Funded VoIP over Satellite Development helps African telecoms

01 Jul 2008

Telecom operators across Africa and the Middle East can now benefit from new technology developed with the assistance of the European Space Agency.


World Telecom Labs, a Belgian-based developer of Voice over IP (VoIP) equipment for telecom operators, developed this technology through ESA’s Research in Telecommunications Systems (ARTES) program. The project’s objective was to address the difficulties of carrying VoIP traffic over shared satellite services, primarily DVB-RCS, to result in a commercially saleable device allowing telecom operators to deploy a range of satellite-based commercial services.

The platform used for this development was WTL's existing IPNx switch. Modifications needed to be made in order for it to become suitable for satcom operators by adapting WTL's patented Network Optimisation Protocol (NOP). Using WTL’s NOP bandwidth-saving technology will typically cut the cost of satellite bandwidth in half without sacrificing quality. Simply put, this technique packs multiple VoIP voice samples into a single IP packet. Because the samples are not modified, quality is unaffected but, on multi-call links, significant savings are made on the packet overhead. Also, since single samples are taken from each active call rather than queuing multiple samples from the same call, delay is not increased.

As the focus of the project was to create commercial benefits, a live customer network was to be installed and tested. The client chosen for this pilot was Xplorium, an international wholesale VoIP carrier with a presence in Europe, the Americas, the Middle East and Africa. Xplorium's specialities include carrying the international traffic of Global System for Mobile Communications (GSM) operators. In a number of locations the traffic is carried via satellite and this has given rise to concerns about the voice quality and the efficiency of transmission.

The first operational link used for the pilot was between Gambia and the client’s NOC in Paris with a capacity for 360 optimised VoIP calls (equivalent to 12 E1s). The trial was successful by demonstrating high voice quality and confirming that significant bandwidth savings were actually achieved. As a result the pilot was soon followed by deployments in a number of other African locations, with the traffic again being sent to the Paris hub.

Simon Pearson, WTL’s Business Development Director says; “For this installation we have been able to draw on the improvements that we made to NOP in the ESA funded project. This allows us almost to do the impossible – in some cases we can save bandwidth and improve the voice quality of VoIP over satellite. We have added features specifically to counteract the common problems of satellite transmission of VoIP, namely variable delay or jitter, long delay and packet loss in busy contended services.”

Frank Zeppenfeldt, Communications Engineer with ESA's Telecommunications and Integrated Applications department says;  "In this project ESA offered its technical DVB-RCS assets to support WTL in testing the performance of voice codecs in a satellite environment. This is a typical example of a development supported by the ARTES 4 program of ESA Telecommunications, in which a new product is developed that is close to the market and allows the enhancement of voice services over satellite."

ESA supports a wide range of projects, which encourage adoption of the DVB-RCS standard, providing positive benefits for all. DVB-RCS is an open standard for bi-directional or two-way transmission of digital data. It employs satellite transmission using combinations of C, Ku and Ka bands with return bandwidth up to 2 Mbit/s. Such projects stimulate growth and keep Europe on the forefront of the telecommunications industry.

For more information, see the links located in the top right corner of this page.

Last Update: 01 Jul 2008
 
Related Links
VoIP Equipment for Satellite Use
ESA supported projects for DVB-RCS
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--- End Message ---

Attachment: NOP Bandwidth calculator.xls
Description: MS-Excel spreadsheet

Dear members,

 

I was inspired to submit content in order to explore the potential for integration of NOP into current revised standards for transmission of SS7 over IP over satellite.

 

If this content is deemed too commercial for this readership kindly advise or direct me towards a more appropriate audience; a brief overview of the concept is included in the text below related to a joint development successfully completed with ESA (European Space Agency): The complete article is covered in the attached link, and a separate .xls file includes calculation parameters for NOP benefits over SIP and H323.

“WTL has an excellent track record in providing equipment for voice services using satellite trunking and has over 100 systems deployed around the world. The company’AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAQAAAAIAAAADAAAABAAAAAUAAAAGAAAABwAAAAgAAAAJAAAACgAAAAsA AAAMAAAADQAAAA4AAAAPAAAAEAAAABEAAAASAAAAEwAAABQAAAAVAAAAFgAAABcAAAAYAAAAGQAA ABoAAAAbAAAAHAAAAB0AAAAeAAAAHwAAACAAAAAhAAAAIgAAACMAAAAkAAAAJQAAACYAAAAnAAAA KAAAACkAAAD+////KwAAACwAAAAtAAAALgAAAC8AAAAwAAAAMQAAADIAAAAzAAAANAAAADUAAAA2 AAAANwAAADgAAAA5AAAAOgAAADsAAAA8AAAAPQAAAD4AAAA/AAAAQAAAAEEAAABCAAAAQwAAAEQA AABFAAAARgAAAEcAAABIAAAASQAAAEoAAABLAAAATAAAAE0AAABOAAAATwAAAFAAAABRAAAA/v// /1MAAABUAAAAVQAAAFYAAABXAAAAWAAAAFkAAAD+////WwAAAFwAAABdAAAAXgAAAF8AAABgAAAA YQAAAP7////9////ZAAAAP7///////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////9SAG8AbwB0ACAARQBuAHQAcgB5AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAFgAFAf//////////AwAAABAIAgAAAAAAwAAAAAAAAEYAAAAA AAAAAAAAAADgUkIfpdnHAf7///8AAAAAAAAAAEIAbwBvAGsAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA;s key strength in this area has always been the superior bandwidth-saving capability of WTL’s patented NOP (Network Optimisation Protocol).

The Artes 4 contract provided joint funding for a series of developments designed to make WTL equipment perform an even better job for telecom operators wishing to use these emerging low cost satellite services. One aspect of the ESA project was to modify NOP to operate efficiently over DVB-RCS services. The lower price point of DVB-RCS equipment and space segment means that this is of great interest to operators, particularly in the developing world.”

 

Regards,

 

 

Rubin Rose

International Account Manager

Changing the way the World Communicates ............

World Telecom Labs

Diegemstraat 42

B-1930 Zaventem

Belgium

Telephone +32 2 722 7200

Fax +32 2 725 6006

Web http://www.wtl.be

Email rubin.rose at wtl.be

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