Blink Free SIP Client Supports Free SIP Service Provider SIP2SIP

Blink Free SIP Client  SIP2SIP snapvoip.blogspot.com
One of my favorite Free SIP account providers is  SIP2SIP and now that they have dropped their proprietary SIP client to provide an open source solution known as Blink. Now you will be able to get a SIP client and a free SIP account from the same source or same place. I knew this place as AG Projects.

Blink is built on top of SIP SIMPLE client SDK and is licensed according to GPL version 3. Blink is now available for MacOSX, the Window and Linux versions are on the way.

The Blink project rely of following standards for Signaling, Nat Traversal, location services, VoIP, IM and desktop sharing;

• Session Initiation Protocol RFC3261
• Session Description Protocol RFC4566
• An Offer/Answer Model with Session Description Protocol (SDP) RFC4566
• SIP Service Location RFC3263
• Bonjour Multicast DNS draft-lee-sip-dns-sd-uri-03 (work in progress)
• SIP Signaling: Symmetric Response Routing Symmetric media RFC3581
• RTP Media (Audio and Video): Interactive Connectivity Establishment (ICE) draft-ietf-mmusic-ice-19
• MSRP Media (Instant Messaging and File Transfer): MSRP relay extension RFC4976
• RTP, A Transport Protocol for Real-Time Applications RFC3550
• Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP) RFC3605
• SRTP, The Secure Real-time Transport Protocol RFC3711
• DTMF handling RFC2833
• Message Summary Event Package RFC3842
• Wide-band Internet codecs: Speex and G722
• PSTN Compatible codecs: G711, iLBC and GSM
• SIP Extension for Instant Messaging RFC3428
• MSRP protocol RFC4975
• Common Presence and Instant Messaging (CPIM) RFC3862
• Indication of Message Composition for Instant Messaging RFC3994
• File Transfer RFC5547