Legal information

Information according to § 5 TMG, responsible for this content according to § 55 section 2 RStV
  • GILAWA Ltd
  • Georgiou Nikolaidi 10
  • 7060 Livadia, Cyprus
  • Phone: +357 24 030678
  • Contact E-Mail: , you can contact us here
  • Web site:
  • VAT Id: CY10420458L

You find the other legal imprint information below.

Information about GILAWA in social media

Linkedin link Xing link Github link Twitter link

General information about our team

Henning Westerholt is an Open Source developer and a Senior IT Operations and Software Development Manager. During his career he was responsible for different products at IT Service Providers and also for the internal IT of several large manufacturing companies in Germany. He provides consulting services for Kamailio and VoIP services in the performance, reliability and security areas. Henning is one of the core developers of the Kamailio® Open Source project since 2007 and member of the Kamailio Management team.

Management experience

He has a broad experience as IT manager, being responsible for one or several teams in IT Operations and software development in different roles in last 10 years. Henning Westerholt is especially experienced in the IT Operations area, where he was responsible for a department of over 50 people with a budget of app. 20 Million Euro at TRUMPF.

Voice over IP

He was several years ago responsible at 1&1 for the operation of their Voice over IP and DSL platform. This includes the maintenance and deploying of extensions of the Kamailio, Radius, ACS and order middle-ware systems of 1&1. Henning was in charge with one of the biggest VoIP deployments out there in 2008, using Kamailio (OpenSER) as core routing system: over 3 Million users, over 7 Million phone numbers and 1.5 Billion routed minutes per month.

Open Source

Henning is a long term Linux user and contributor to several Open Source projects, participating in world wide events, presenting about Kamailio (OpenSER) and open source. You can find his current presentations in his personal blog, old presentations are available here.


Henning Westerholt holds a bachelor and master degree in applied computer science from the University of Siegen.

More information

You can find more information about Henning Westerholt on different platforms:

Linkedin link Xing link Github link

Further legal information

This is a translated version of the german legal information, you can find the original version here.

Other services

This legal information is also valid for the following services:



Liability for content

The contents of our pages were created with great care. However, we can not assume any liability for the accuracy, completeness and timeliness of the content. As a service provider we are responsible according to § 7 Abs.1 TMG for own contents on these sides according to the general laws. According to §§ 8 to 10 TMG, however, we as a service provider are not obliged to monitor transmitted or stored external information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information under general law remain unaffected. A liability in this regard, however, is only possible from the date of knowledge of a specific infringement. Upon notification of appropriate violations, we will remove this content immediately.

Liability for links

Our offer contains links to external websites of third parties on whose contents we have no influence. Therefore, we can not assume any liability for these external contents. The respective provider or operator of the pages is always responsible for the contents of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal content was not recognizable at the time of linking. However, a permanent content control of the linked pages is not reasonable without concrete evidence of an infringement. Upon notification of violations, we will remove such links immediately.


The content and works on these pages created by the site operators are subject to German copyright law. The reproduction, processing, distribution and any kind of exploitation outside the limits of copyright require the written consent of the respective author or creator. Downloads and copies of this site are for private, non-commercial use only. As far as the contents on this side were not created by the operator, the copyrights of third parties are considered. In particular contents of third parties are marked as such. If you should still be aware of a copyright infringement, we ask for a note. Upon notification of violations, we will remove such content immediately.

Data protection

Information about data protection can be found in the privacy statement of this web site.

Dispute settlement

The European Commission provides a platform for online dispute resolution (OS). You will find the platform here.

  • Copyright of content, if not otherwise noted, belongs to Henning Westerholt.
  • The registration of the Kamailio® trademark in the European Union and United States of America is sponsored from GILAWA.

Website legal information created with, translated and with small changes.