CHAPTER 28 Advanced SBC Features
Mediant 4000 SBC | User's Manual
■
DTLS-SRTP (RFCs 5763/5764):
Media channels must be encrypted (secured) through
Datagram Transport Layer Security (DTLS) for SRTP key exchange. For more information, see
■
SRTP (RFC 3711):
Secures media channels by SRTP.
■
RTP Multiplexing (RFC 5761):
Multiplexing RTP data packets and RTCP control packets
onto a single port for each RTP session. For more information, see
■
Secure RTCP with Feedback (i.e., RTP/SAVPF format in the SDP - RFC 5124):
Combines secured voice (SRTP) with immediate feedback (RTCP) to improve session quality.
The SRTP profile is called SAVPF and must be in the SDP offer/answer (e.g., "m=audio 11050
RTP/SAVP
F
103"). For more information, see the IP Profile parameter, IPProfile_
SBCRTCPFeedback (see
).
■
WebSocket:
WebSocket is a signaling (SIP messaging) transport protocol, providing full-
duplex communication channels over a single TCP connection for Web browsers and clients.
SIP messages are sent to the device over the WebSocket session. For more information, see
.
For more information on WebRTC, visit the WebRTC website at
. Below
shows a summary of the WebRTC components and the device's interworking of these components
between the WebRTC client and the SIP user agent:
The call flow process for interworking WebRTC with SIP endpoints by the device is illustrated
below and subsequently described:
1.
The WebRTC client uses a Web browser to visit the Web site page.
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Содержание Mediant 4000 SBC
Страница 1: ...User s Manual AudioCodes Series of Session Border Controllers SBC Mediant 4000 SBC Version 7 2...
Страница 40: ...Part I Getting Started with Initial Connectivity...
Страница 48: ...Part II Management Tools...
Страница 113: ...Part III General System Settings...
Страница 118: ...Part IV General VoIP Configuration...
Страница 525: ...Part V Session Border Controller Application...
Страница 654: ...Part VI Cloud Resilience Package...
Страница 663: ...Part VII High Availability System...
Страница 685: ...Part VIII Maintenance...
Страница 759: ...Part IX Status Performance Monitoring and Reporting...
Страница 844: ...Part X Diagnostics...
Страница 888: ...Part XI Appendix...
Страница 1036: ...This page is intentionally left blank CHAPTER 62 Technical Specifications Mediant 4000 SBC User s Manual 1003...