Telecommunication Protocol

Learn basic OSI work

2007-10-30T22:07:00.000+08:00

IP subnetting made easy

2007-04-13T16:32:00.000+08:00

IP subnetting is a fundamental subject that's critical for any IP network engineer to understand, yet students have traditionally had a difficult time grasping it. Over the years, I've watched students needlessly struggle through school and in practice when dealing with subnetting because it was never explained to them in an easy-to-understand way. I've helped countless individuals learn what

SCCP

2007-04-03T16:31:00.000+08:00

6.4.1 Basic Concepts Signaling connection control part is abbreviated as SCCP. In the layered architecture of SS7, SCCP is one of the UPs. It belongs to the fourth functional group, providing additional functions for MTP at the same time so that circuit related information, non-circuit related information and other information can be transmitted between the switches and special centers of

ISUP

2007-03-28T15:17:00.000+08:00

1 OverviewI. Basic ConceptsISUP is one kind of UPs of the No.7 public channel signaling system. It provides the signaling function required for supporting voice and non-vocie basic bearer services and supplementary services in the integrated services digital network (ISDN).ISUP is applied to the hybrid digital/analog network, telephony network, and dedicated circuit-switched data network. ISUP

MTP

2007-03-03T00:03:00.000+08:00

Basic Concepts MTP is used to transmit signaling messages of various UPs (such as TUP, DUP, and ISUP) in SS7 system. Its design complies with the ITU-TQ.701-710 recommendations. The MTP provides reliable signaling message transmission. It takes measures to avoid message loss, repetition, and out-of-sequence in case of the signaling network failure. The MTP includes the functional levels of

SS7 - Overview

2007-02-26T03:03:00.000+08:00

Overview Signaling system No.7 (SS7) is made by International Telephone and Telegraph Consultative Committee (CCITT). SS7 is an international standard common channel signaling, which features high-speed transmission, potentiality of providing a great number of signals, powerful functions, flexibility and reliability. It can meet the signaling requirements of public

Recommendation H.245

2007-02-17T11:13:00.000+08:00

Overview of H.245 Recommendation H.245 is the control protocol for multimedia communication. It is designed for conference communication. H.245 is the control protocol in H.323 stack, and controls the establishment, maintenance and release of channels. In H.245, there are two kinds of channels defined as follows: 1) Control channel: also called H.245 channel. Through this channel,

H.225.0 Call Signaling Protocols

2007-02-14T19:06:00.000+08:00

Overview of H.225.0 Recommendation H.225.0 is drafted based on Q.931 and Q.932. Recommendation Q.931 is ISDN user-network interface layer-3 specification for basic call control. Recommendation Q.932 specifies the generic procedures for the control of ISDN supplementary services. H.225.0 Messages I. Overview of H.225.0 messages H.225.0 basic call control messages are borrowed from Q.931

RAS Protocol

2007-02-09T08:30:00.000+08:00

Overview of RAS RAS is a part of H.225.0, which is used between endpoint and GK, and implements management function. It includes the following seven categories of procedures: I. GK discovery An endpoint uses multicast mode to discover the homed GK. Afterwards, all RAS messages will be transmitted between the endpoint and its homed GK. II. Terminal and GW registration It is used by an

H.323 Overview

2007-02-06T10:53:00.000+08:00

4.1 Overview of H.323 4.1.1 What is H.323 H.323 is an ITU-T Recommendation which covers the technical requirements for multimedia communications systems in a packet based network (PBN). H.323 entities (call control for instance) might be used in point-to-point sessions and multipoint conferences. The latest version

SIP

2007-01-25T12:09:00.001+08:00

Table of Contents Chapter 3 SIP. 3-1 3.1 Overview.