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Adrian Georgescu, 06/09/2014 12:11 am


Microsoft Lync replacement checklist

Multiparty and multimedia real-time communications interoperable with foreign SIP and XMPP domains.

Client Side (Blink)

Component Mac OSX Windows Linux Description
Presence Yes Yes Yes SIMPLE RLS
Contact List Yes Yes Yes XCAP protocol
Audio Yes Yes Yes Opus codec
Chat Yes Yes Yes MSRP protocol
File Transfer Yes Yes Yes MSRP protocol
Multiparty Conferencing Yes Yes Yes RTP and MSRP
NAT Traversal Yes Yes Yes ICE & MSRP Relay
Screen sharing Yes UD UD VNC protocol
Video Yes UD UD H.264 codec
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 Description
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

XMPP interoperability is implemented using the specifications developed together with IETF STOX Working Group, work we co-authored and implemented in the public domain.

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 in case the solution should be deployed at customer premisses.

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