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Free SIP and ENUM Services

Free SIP and ENUM Services & Tools

e164.org - Free ENUM provider, SIP compatible.

enum.at SIP TAPI Driver - It is GPL, based on AstTapi and eXosip2. It allows click2dial from any TAPI application (e.g. MS Outlook).

ENUM RTC Softphone - The ENUM RTC Softphone is an ENUM anbled SIP softphone. The softphone uses the Microsoft SIP stack (MS RTC API) and the ENUM Active-X control from JPRS.

www.ipsofactum.com is a SIP VoIP server that provides PC to PC service for free targeted to spanish speakers.

FreeWorld Dialup - Use FWD to make real, free phone calls using your favorite telephone, computer or PDA and any broadband connection. Call your neighbor or a relative, next door or in another country; all with the same ease, speed, and high quality.

SIPfoundry is a non-profit organization dedicated to SIP open source projects, solutions and technology. SIPfoundry has tight relationships with the IETF community and the SIP Forum. Our signature project, sipX, is a commercial grade IP PBX complete with all major calling features, voice mail and auto-attendant. sipX offers Web based management of both the SIP PBX as well as all the attached phones and gateways. sipX is available for free download as an open source project from http://www.SIPfoundry.org

SIPphone is a popular free sip service which offers plug-n-dial services for soft phones and hard phones which allow auto-configuration out of the box to allow immediate calling with no user setup. It is the default service for many hard phones including units from Dlink, Leadtek, and Grandstream. User accounts come with complete management to setup follow-me, voice mail, quick dial and other advanced features from my.sipphone.com

Voipuser - Free outbound SIP to PSTN service.