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
(责任编辑:李俊勇)