CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network in Visual Studio .NET

Printer QR in Visual Studio .NET CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network
CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network
Recognizing QR Code ISO/IEC18004 In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications.
From calling party
Print Denso QR Bar Code In .NET Framework
Using Barcode drawer for Visual Studio .NET Control to generate, create QR-Code image in VS .NET applications.
leg1 leg2 T-BCSM leg3 O-BCSM
Recognize Quick Response Code In VS .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in .NET framework applications.
To additional called party To called party
Making Bar Code In Visual Studio .NET
Using Barcode maker for .NET Control to generate, create bar code image in .NET applications.
Call segment 1
Scan Barcode In VS .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in VS .NET applications.
Combination of O-BCSM and T-BCSM in a single call segment
Printing QR Code In Visual C#
Using Barcode drawer for Visual Studio .NET Control to generate, create QR image in .NET applications.
calling party
Print QR Code JIS X 0510 In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
leg1 leg2 O-BCSM
QR-Code Maker In Visual Basic .NET
Using Barcode creation for Visual Studio .NET Control to generate, create QR Code image in VS .NET applications.
Called party
Code 128B Creation In .NET Framework
Using Barcode encoder for VS .NET Control to generate, create USS Code 128 image in .NET applications.
Call segment 1
Draw UPC-A Supplement 2 In Visual Studio .NET
Using Barcode creation for VS .NET Control to generate, create UPC-A image in .NET applications.
calling party
Encode Code 39 Extended In VS .NET
Using Barcode encoder for VS .NET Control to generate, create Code-39 image in .NET applications.
leg1 leg2 O-BCSM Call segment 1 Call segment 2
ANSI/AIM I-2/5 Creation In VS .NET
Using Barcode printer for VS .NET Control to generate, create ANSI/AIM I-2/5 image in .NET framework applications.
gsmSRF You have one minute call time left (optional) Called party
Bar Code Creator In VS .NET
Using Barcode drawer for ASP.NET Control to generate, create barcode image in ASP.NET applications.
O-BCSM
UPCA Scanner In Visual Studio .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET framework applications.
gsmSRF
Data Matrix ECC200 Maker In Java
Using Barcode encoder for Java Control to generate, create Data Matrix ECC200 image in Java applications.
Placing one party on hold during a call
Drawing ANSI/AIM Code 128 In Java
Using Barcode creator for Java Control to generate, create Code 128 Code Set A image in Java applications.
party in a separate call segment allows the CAMEL service to play an announcement to one party during the call This is depicted in Figure 613 In Figure 613 the CAMEL service places leg 2 in a separate call segment The result is that legs 1 and 2 are no longer in speech connection The CAMEL service may now connect call segment 1 to a gsmSRF in order to play an announcement to the calling party The playing of the announcement to the calling party follows the user interaction mechanisms described in 4 That implies, amongst others, that the CAMEL services use CAP operations like connect to resource, play announcement, disconnect forward connection, etc Figure 614 contains the sequence ow for the example scenario in Figure 613 The separation of the calling party and the called party also has the effect that there are temporarily two O-BCSM instances, one O-BCSM instance containing leg 1 and one O-BCSM instance containing leg 2 When the playing of the announcement is complete, the CAMEL service may reconnect the calling and called party, by moving leg 2 back into call segment 1; the two call legs are then back into a single O-BCSM Placing a party on hold always involves the creation of a new call segment It is not possible to create a side conference Only the primary call segment, ie call segment 1, may contain more than one call party
Create EAN13 In Java
Using Barcode creator for Java Control to generate, create European Article Number 13 image in Java applications.
CAMEL Phase 4
Barcode Decoder In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
gsmSCF
EAN13 Recognizer In .NET Framework
Using Barcode reader for .NET framework Control to read, scan read, scan image in .NET framework applications.
Active call
Creating UCC-128 In Java
Using Barcode creator for Java Control to generate, create EAN 128 image in Java applications.
Split leg[Leg=2; CS=2] Split leg result Connect to resource[CS=1] Play announcement[CS=1;]
MSC/gsmSSF
Called party is placed on hold
Announcement is played to calling party Announcement is complete; gsmSRF may be disconnected
Announcement is played to calling party
Specialized resource report Disconnect forward connection with argument[CS=1] Move leg[Leg=2] Move leg result Continue with argument[CS=1] Called party is reconnected to calling party
Call continues
Sequence ow for mid-call announcement
The SRR depicted in Figure 614 does not contain a CS Identi er SRR is a LINKED operation; it is linked to the previous PA operation When CAMEL orders PA for multiple call segments (using multiple PA operations), then the linking of the CAP SRR to the CAP PA indicates to the CAMEL service for which Call Segment a CAP PA was completed 6224 Removing a Party from a Call The CAMEL service may at any moment remove a party from the call, without affecting the other parties in the call This mechanism may be used during a conference call; see Figure 615 In the example in Figure 615, the CAMEL service had already disconnected call party 3 from the conference call The other parties in call segment 1 remain in speech connection with one another Call party 5 is now placed in a separate call segment; this enables the CAMEL service to play an
Calling party
leg1 leg2 O-BCSM (leg 3) O-BCSM leg4 Call segment 1 O-BCSM
To conference call party (active) (disconnected) To conference call party (active)
gsmSRF
leg5
You will now be disconnected from the conference call
Call segment 2
O-BCSM
To conference call party (on hold)
Removing parties from a call
CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network
gsmSCF
Active call
Split Leg[Leg=5; CS=2] Split Leg result Continue with argument[CS=1] Connect to resource[CS=2] Play announcement [CS=2;]
MSC/gsmSSF
Called party on leg 5 is placed on hold
Announcement is played to called party on leg 5
Announcement is played to called party on leg5
Specialized resource report Disconnect forward connection with argument[CS=2] Disconnect leg[Leg=5] Disconnect leg result Called party on leg 5 is disconnected from the call Announcement is complete; gsmSRF may be disconnected
Call continues
Disconnecting called party on leg 5 from the call
announcement to that call party prior to disconnecting that party from the call Figure 616 presents an example sequence ow for removing a party from the call with pre-disconnection announcement By removing a party from the call, the CAMEL services also releases the logical view of that call party, ie the CAMEL service cannot apply a reconnect on that leg The CAMEL service may, however, create again a leg 3 in the call That leg will be created in a separate call segment When the leg has reached the alerting phase of the call, it may be moved to call segment 1 Another practical case whereby a party is removed from a call is the ringback tone service The ringback tone service entails a call being established to a subscriber and the normal ringback tone being replaced by a personalized ring tone The ringback tone for an MT GSM call is normally generated in the VMSC of the called subscriber The ringback tone service establishes the call with calling and called party in separate call segments During call establishment, the ringback tone service injects the personalized ring tone into the speech connection to the calling party (Figure 617) Such service may be triggered in the GMSC for the called party The CAMEL service that is triggered with T-CSI for this call disconnects the original called party, ie call party 2, form the call This called party is replaced by another call party, which is created in a separate call segment Whilst call establishment is ongoing, the CAMEL service uses user interaction to play a personalized announcement towards the calling party The regular ring tone that is generated from the VMSC of the called party and sent over ISUP in backwards direction, will not be heard by the calling party, since there is no speech connection between the called party leg and the calling party leg When the called party answers the call, the CAMEL service moves the called party leg into call segment 1; the calling party and the called party are in speech connection from then onwards The reason for replacing the original called party leg with a newly created call leg is that the original called party leg may not be split off from the primary call segment (ie call segment 1) prior to reaching the active state However, speech separation of calling and called party is already required during call establishment The signalling sequence that may be used for this call case is shown in Figure 618 In this service example, the CAMEL service is controlling both a T-BCSM instance and an O-BCSM instance in the GMSC The T-BCSM instance contains leg 1; the O-BCSM instance contains leg 3 When the service creates the replacement call leg towards the called party, it may apply the following methods: