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Adrian Georgescu, 06/08/2014 05:24 pm


Microsoft Lync replacement checklist

Complete multimedia experience (audio, video, presence, chat, file transfer, screen sharing) interoperable with foreign SIP and XMPP domains.

Client Side (Blink)

Component Mac OSX Windows Linux Description
Presence Yes Yes Yes SIP SIMPLE RLS
Contact List Yes Yes Yes SIP SIMPLE XCAP
Audio Yes Yes Yes RTP Opus codec
Audio Encryption Yes Yes Yes sRTP
Chat Yes Yes Yes MSRP protocol
Chat Encryption Yes Yes Yes TLS, OTR
File Transfer Yes Yes Yes MSRP protocol
File Transfer Encryption Yes Yes Yes TLS
Multiparty Conferencing Yes Yes Yes RTP and MSRP
NAT Traversal Yes Yes Yes RTP ICE & MSRP Relay
Screen sharing Yes UD UD VNC over MSRP
Video Yes UD UD RTP H.264 codec
Brand-able Yes Yes No N/A
Packaging DMG Installer .deb N/A
Multi-language Yes No No N/A
  • N/A = not applicable
  • UD = under development

Complete RFC and standards listed here http://icanblink.com/standards.phtml

Server Side (SylkServer)

Component Linux Protocol
Multiparty Audio Conferencing Yes RTP mixer
Multiparty Chat Conferencing Yes MSRP Switch
Multiparty File Transfer Yes MSRP
Multiparty Video Conferencing No Colibri
Conference Participants Yes RFC4575
XMPP gateway Yes IETF STOX

Complete RFC and standards listed here http://sylkserver.com/features.phtml

Presence Agent (RLS) is provided by OpenSIPS, MSRP NAT traversal by MSRPRelay and contact-list by OpenXCAP. Ideally, these components should be integrated in SylkServer for zero-configuration deployment at customer premisses.

Lync-Replacement.png (111.1 kB) Adrian Georgescu, 06/09/2014 01:37 pm