Enter-Service - Ukranian SIP provider. Full SIP service - VOIP service; Free Web Calls; Free PC-to-PC sip service; Prepaid PSTN service
OnSIP - Totally customizable SIP service provider for small-medium business which provides free internet to internet calling; free SIP domain hosting; and unlimited free extensions.
Sure Telecom - Cheap calls Worldwide; SIP Server; IP PBX Systems; Innovative solutions; International phone numbers; Multiple extensions; Conference calls; Call recording; Good quality; Free trial; Register Today!
BRAVO! hIPer Telefonia - BRAVO provides SIP phone services and solutions for residential and corporate customers from Brazil with high quality and low rates. We also provide advanced solutions for callcenters.
SpeedVoIP Communication Technology Co.; Ltd - For political & economic reasons; ISP may block VoIP in your country. To protect your VoIP business & profit; SpeedVoIP provides patent Security SIP Softphone/Dialer; which circumvent VoIP blockage.
TerraSip SA - TerraSip is listed TOP 10 in the WORLD! Members call each other all over the world for free. Enjoy free and cheap phone calls to other networks with TerraSip; the mobile VoIP Community.
Digital-ST - DST-8200 IP-ASI Network Adapter/Encapsulator for DVB Broadcast over Satellite; CATV; MMDS and DVB-T Netowokrs. SIP
Techland Systems International - SIP; Techland is Online Email Archiving Services solution Management Provider and Email Archive Services Management; Email Archiving Software Appliances; Services Tools; techland services
SpeedVoIP Communication Technology Co.; Ltd - Fully SIP compatible softphone/dialer for PC2Phone and PC2PC services.
VoiceGuard™ softphone/dialer features - Own Unique Brand or Logo Presentation, Optional skins.
PCBest Network - PCBest Network provides SIP solutions for business. Its SIP SDK is very powerful; stable and easy to use. It can be used to develop SIP softphone or SIP server applications. Free to download and try.
Webacall.com - SIP based VoIP Services. VoIP; Virtual Calling Cards; DID numbers; Callshop Applications; Reselling Options
VOZ de Puerto Rico - SIP Trunking; Virtual PBX; Residential services in Puerto Rico.
Minute Traders - Minutetraders.com is an online marketplace serving the SIP and VoIP community. With Minute Traders Buy or Sell your VoIP/TDM routes to a worldwide audience.
TekIVR - TekIVR is a SIP Interactive Voice System (IVR) which provides "Call Attendant" function (Based on RFC 3261) runs under Windows.
Mazingo - Mazingo's SmartPhone - just the coolest all-in-one SIP based 'phone you’ll ever need to carry. It has advanced call management; including VCC; to support hand-off between GSM and WLAN networks.