Doubango Telecom

Doubango Telecom

Doubango Telecom is a young Telco company focused on open source projects. We are specialized in NGN technologies (3GPP, TISPAN, Packet Cabel, WiMax, GSMA, RCS-e, IETF...standards) and audio/video codecs.
Our products include SIP/IMS (VoIP) clients/servers, MCUs, VNC stacks and audio/video codecs. Most of our products are already open sourced.

Proof Of Concept


Client-side components.
sipML5 » HTML5 SIP client using webrtc2sip Gateway.
Enjoy our live demo »
Boghe » IMS/RCS Client for Windows XP, Vista and 7.
IMSDroid » SIP/IMS Client for Android.
iDoubs » SIP/IMS VideoPhone for iOS (iPhone, iPad and iPod Touch) and MAC OS X.
Server-side components
OpenVCS » OpenVCS stands for Open Source Video Conferencing Server and is used to manage Multipoint Control Units (MCU). Each MCU (a.k.a Bridge) can handle up to 64 participants.
webrtc2sip » WebRTC to SIP Gateway.
Flash2IMS » Adobe® Flash® to SIP/IMS Gateway.

Main Features


  • SIP (RFC 3261, 3GPP TS 24.229 Rel-9)
  • IMS-AKA (RFC 3310, 3GPP TS 33.203, 35.205, 35.206, 35.207, 35.208 and 35.909)
  • Private extension headers for 3GPP
  • IPv4/IPv6 dual stack
  • UDP, TCP and TLS
  • Service-Route Discovery (RFC 3608)
  • Proxy-CSCF discovery using DHCPv4/v6 or/and DNS NAPTR
  • SigComp (RFC 3320, 3485, 4077, 4464, 4465, 4896, 5049, 5112 and 1951)
  • IPSec
  • Security Agreement (RFC 3329)
  • NAT Traversal (STUN, TURN and ICE)
  • Preconditions (RFC 3312, 4032 and 5027)
  • SMS over IP (3GPP TS 23.038, 24.040, 24.011, 24.341 and 24.451)
  • ENUM (RFC 3761)
  • The tel URI for Telephone Numbers (RFC 3966)
  • SIP SIMPLE (Presence Subscription/Publication and Pager Mode IM)
  • MMTel (UNI)
  • SDP (RFC 3264)
  • (S)RTP and (S)RTCP
  • (S)AVP and (S)AVPF profiles
  • XCAP (RFC 4825)
  • MSRP (RFC 4975 and 5547)
  • Audio/Video (AMR, Speex, G.729, G.711, GSM, iLBC, VP8, H.264, H.263, Theora, MP4V-ES...)
  • Full HD (1080p) video
  • ...and many other features

The One Voice Profile (4G/LTE)


Doubango IMS Framework supports both Voice and SMS over LTE as defined by the One Voice initiative.
For more information, please refer to Voice over IMS profile V1.0.0(2009-11).


3GPP LTE Architecture

Multimedia Telephony (MMTel)


  • MMTel Supplementary Services (3GPP TS 24.173, 24607, 24.608, 24.607, 24.604, 24.611, 24.610, 24.606, 24.615 and 24.605)
  • Supplementary Service Configuration (3GPP TS 24.623)
  • Ad-Hoc Multi Party Conference (3GPP TS 24.605)
  • Communication Waiting (3GPP TS 24.615)
  • Message Waiting Indication (3GPP TS 24.606 and RFC 3842)
  • Originating/Terminating Identification Restriction (3GPP TS 24.607/608)
  • Communication Diversion (3GPP TS 24.604)
  • Communication Barring (3GPP TS 24.611)

Protocols


  • SIP/SigComp
  • SDP
  • (S)RTP and (S)RTCP
  • XCAP (RFC 4825)
  • MSRP(S) (RFC 4975 and 5547)
  • HTTP(S) (RFC 2616 and 2617)
  • DHCPv4 (RFC 2131)
  • DHCPv6 (RFC 3315)
  • DNS (RFC 1034, 1035, 3401, 3402, 3403, 3404, 3596, 2035, 2671, and 2782)

OMA SIMPLE IM


  • Pager Mode IM (MESSAGE)
  • Session Mode Messaging (MSRP)
  • Large Message IM (OMA)
  • File Transfer(MSRP) and Image Sharing (GMSA IR.79)

Doubango IMS Framework Architecture

Doubango IMS Framework Architecture
Doubango IMS Framework Architecture