Interworking Between MGCP and SIP in VS .NET

Generate Data Matrix ECC200 in VS .NET Interworking Between MGCP and SIP

Interworking Between MGCP and SIP
Draw Data Matrix ECC200 In VS .NET
Using Barcode drawer for .NET Control to generate, create Data Matrix 2d barcode image in .NET applications.
Data Matrix Recognizer In .NET Framework
Using Barcode decoder for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
The example of Figure 6-8 assumes that two gateways are used, but that a single call agent controls both gateways It is equally likely that separate call agents control the gateways In such a case, a need exists for signaling between the two call agents In the softswitch architecture, we commonly use SIP Figure 6-9 is an adaptation of Figure 6-8, with the difference that separate call agents control the gateways The figure shows how MGCP and SIP fit very well together, particularly since they both utilize SDP for describing sessions Once the connection is created on the first endpoint (line b of Figure 6-10), the returned session description becomes the message body of a SIP INVITE sent to the other call agent (line c) Note that most of the SIP headers and other fields have been omitted, and to avoid clutter, the names of the endpoints and the TransactionIds have been shortened compared to Figure 6-8 Once the second connection is created, on the second gateway (line e), the corresponding session description becomes the message body of the SIP 200
Barcode Maker In VS .NET
Using Barcode encoder for .NET framework Control to generate, create bar code image in VS .NET applications.
Recognizing Barcode In Visual Studio .NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in .NET framework applications.
Downloaded from Digital Engineering Library @ McGraw-Hill (wwwdigitalengineeringlibrarycom) Copyright 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website
DataMatrix Generation In C#.NET
Using Barcode generator for .NET framework Control to generate, create Data Matrix 2d barcode image in .NET applications.
Data Matrix 2d Barcode Maker In Visual Studio .NET
Using Barcode maker for ASP.NET Control to generate, create DataMatrix image in ASP.NET applications.
Media Gateway Control and the Softswitch Architecture
DataMatrix Creation In Visual Basic .NET
Using Barcode printer for Visual Studio .NET Control to generate, create ECC200 image in Visual Studio .NET applications.
Encoding EAN13 In Visual Studio .NET
Using Barcode drawer for .NET Control to generate, create EAN13 image in Visual Studio .NET applications.
Call Agent B Call Agent A
Drawing Code 128 In Visual Studio .NET
Using Barcode maker for Visual Studio .NET Control to generate, create Code 128 Code Set A image in .NET applications.
Create GS1-128 In .NET
Using Barcode printer for VS .NET Control to generate, create EAN / UCC - 13 image in Visual Studio .NET applications.
6
Make Barcode In Visual Studio .NET
Using Barcode generator for Visual Studio .NET Control to generate, create barcode image in Visual Studio .NET applications.
Generating UCC - 14 In .NET Framework
Using Barcode encoder for .NET Control to generate, create GTIN - 14 image in Visual Studio .NET applications.
Figure 6-9 Call setup using MGCP and SIP
Read European Article Number 13 In Visual Basic .NET
Using Barcode reader for .NET Control to read, scan read, scan image in VS .NET applications.
UPC - 13 Encoder In None
Using Barcode encoder for Online Control to generate, create GTIN - 13 image in Online applications.
MG B
Drawing Bar Code In Java
Using Barcode creator for Eclipse BIRT Control to generate, create barcode image in BIRT reports applications.
Bar Code Creator In None
Using Barcode maker for Microsoft Excel Control to generate, create bar code image in Office Excel applications.
MG A
Data Matrix ECC200 Generator In None
Using Barcode creator for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
Recognize UPC-A Supplement 5 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
CRCX 11 E1@MGAnet MGCP 10 C: 1234567 M: recvonly b 200 11 OK I: AAAA c INVITE d v=0 c=IN IP4 1234567 CRCX 22 E2@MGBnet MGCP 10 C: 1234567 m=audio 11000 RTP/AVP 0 M: sendrecv v=0 c=IN IP4 1234567 m=audio 11000 RTP/AVP 0 e 200 22 OK I: BBBB M: recvonly SIP/20 200 OK g v=0 c=IN IP4 1236789 m=audio 22000 RTP/AVP 0 v=0 c=IN IP4 1236789 MDCX 12 E1@MGAnet MGCP 10 m=audio 22000 RTP/AVP 0 I: AAAA M: sendrecv v=0 c=IN IP4 1236789 m=audio 22000 RTP/AVP 0 h 200 12 OK I: AAAA i ACK j Media Transfer v=0 c=IN IP4 1234567 m=audio 11000 RTP/AVP 0
Paint Code 128C In None
Using Barcode printer for Online Control to generate, create ANSI/AIM Code 128 image in Online applications.
Barcode Creation In None
Using Barcode drawer for Office Word Control to generate, create bar code image in Word applications.
(OK) response (line f) In turn, the session description is mapped to the MDCX command sent to the first endpoint (line g) Finally, the positive acknowledgment to the MDCX command (line h) is mapped to the SIP ACK (line i), thereby completing the MGCP and SIP signaling sequences
Downloaded from Digital Engineering Library @ McGraw-Hill (wwwdigitalengineeringlibrarycom) Copyright 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website
Media Gateway Control and the Softswitch Architecture
Media Gateway Control and the Softswitch Architecture
MEGACO/H248
Known as MEGACO within the IETF and H248 within the ITU, this protocol has widespread backing within both the Internet and telecommunications community In fact, the cooperation between the two industry organizations reflects the convergence that has occurred between traditional telecommunications and the Internet Given the fact that the term MEGACO/H248 is rather a mouthful, for the purpose of brevity, the remainder of the book uses only the term MEGACO
MEGACO Architecture
MEGACO has a number of architectural similarities to MGCP Similar to MGCP, it defines MGs, which perform the conversion of media from the format required in one network to the format required in another MEGACO defines MGCs, which control call establishment and teardown within MGs and are akin to call agents as defined by MGCP The similarities are hardly that surprising, given that fact that they have both been designed to address a similar set of requirements The MEGACO protocol involves a series of transactions between MGCs and MGs Each transaction involves the sending of a TransactionRequest by the initiator of the transaction and the sending of a TransactionReply by the responder A TransactionRequest comprises a number of commands and the TransactionReply comprises a corresponding number of responses For the most part, transactions are requested by an MGC and the corresponding actions are executed within an MG As in MGCP, however, a number of cases occur when an MG initiates the transaction request The MEGACO specification is written such that it provides both a text encoding and a binary encoding of the protocol The text encoding is written according to Augmented Backus-Naur Form (ABNF), described in RFC 2234 The binary encoding is written according to Abstract Syntax Notation One (ASN1), described in ITU-T Rec X680, 1997 This reflects one difference between the IETF, which normally uses ABNF, and the ITU where ASN1 is the format of choice MGCs should support both types of encoding, while MGs may support both types of encoding but are not required to do so Within this book, the ABNF form is used when offering examples of MEGACO usage as it is more human-readable than ASN1
Downloaded from Digital Engineering Library @ McGraw-Hill (wwwdigitalengineeringlibrarycom) Copyright 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website
Copyright © OnBarcode.com . All rights reserved.