For an introduction to navigating this site, try the Site Intro page. iptel.org is dedicated to the practical side of SIP-based IP Telephony communication. You can here learn about SIP and related technologies and how to set up and maintain a large-scale SIP infrastructure. iptel.org is the home of the well-proven SIP Express Router (SER) and related tools (SEMS - SIP Express Media Server, SERWeb - WEb interface to SERi; RTPProxy - Media proxy server). This site is aiming at:

• iptel.org shall provide information and references on VoIPi standards.
• ipel.ortg shall be the authoritative source for everything needed to set up a large-scale, highly reliable SIP service infrastructure based on SIP Express Router (SER) and related tools.
• iptel.org shall be a place to go for finding user-contributed documents, modules, code snippets, best practices, and links.
• All contributions shall be open for comments (without moderation) so that the community can find pros and cons right there.
• iptel.org shall not be limited to SER, but rather focus on the usage of seri as a SIP server in a service provider/enterprise setting and thus include anything that comes with such a scope.
• iptel.org shall stimulate to development and sharing of any SER/SIP server related contributions, thus increasing SER's value proposition compared to commercial alternatives.