Adore SIP Softphone comes with an intuitive Graphical User Interface and can be easily customized. It's designed with SIP technology that can be used to make outbound phone calls from PC to any telephone. Since sip softphone uses Microsoft's g723.1 codec, it can be used in all versions of Microsoft Windows without the need of external codecs and gives excellent call quality even in dialup connection. SIP dialer softphone delivers SIP-based communications and services for PC-to-Phone, Phone-to-PC and PC-to-PC services. For your own SIP Softphone skin customization, please contact sales@adoreinfotech.com for pricing. Features of SIP Softphone: Customized Skin Interfaces Call Timer Display Balance Call Forwarding Call Transfer Line Hold Last Number Redial Local Signalization (Dial tone, busy, ring back, etc.) for user comfort Mute Touch-Tones Address Book Microphone Volume Control Speaker Volume Control Benefits of SIP Softphone: Small Application (less than 400KB)· Use Microsoft g723.1 codec Works with any Full-Duplex sound card USB handset and headset support. Works well on all versions of Microsoft Windows (Like 95, 98, 98SE, Millennium, NT4, 2000, XP, 2003) NAT/Firewall support, stable SIP, RTP ports Specify NAT IP to be written in SIP messages Auto-Configuration of settings for easy deployment STUN support for NAT detection and classification Configuration Wizard Uses New RFC 3261 compliant stack