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SIP 相关技术系列讲座开讲(4)

时间:2017-09-21 来源:中国集群通信网 作者:网络 点击:

Default Gateway?

Gateway Location and Routing with TRIP

TRIP Examples

SIP-T and PSTN Bridging

SIP-T and SIP-I

SS7, ISDN and SIP

ISUP and SIP Messages

ISDN User Part (ISUP) to SIP Codes

PSTN to PSTN via SIP

ISUP Encapsulation

ISUP Encapsulation / SDP

Addressing Notes

SIP and DTMF

DTMF - Quick Re-Cap

What is DTMF?

DTMF Transport methods

DTMF ‘Inband’

RFC 2833 ‘Trace’ example

RFC 4733 replaces 2833

RFC 4734

SIP INFO 6086

RFC 2833 ‘Trace’ example

SIP INFO ‘Trace’ example

Part 4:SIP/QOS/RTP介绍

What is VoIP or Voice over IP?

What is VoIP?

What is Voice over IP?

VoIP – ‘A Basic Call’

VoIP and TCP / UDP

VoIP over the Internet

Branch to Branch VoIP

Signaling paths

Speech paths

IP PBX

Voice Sampling and Codec

Encoding

Codecs for Voice

Try the Codec Test

High Definition (HD) Voice

Sound tests

Wideband (HD) codecs

Opus codec

Opus audio examples

Codec choices and MOS – Mean Opinion scores

Packet Rate / Packets per second

The Real Time Protocol or RTP

RTP Intro

RTP Encapsulation

RTP Header Trace

Real Time Control Protocol (RTCP)

RTCP-XR (Extended Reports)

RTP / RTCP and UDP Ports

Quality of Service

QoS described

QoS Issues


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