| |
|
|
| IMS Signalling flows for Session Initiation |
| | |
| | Non Hiding |
| |
|
| # |
MO#1a / S-S#1a / MT#1a |
|
| |
| - |
Mobile Origination, roaming
|
| - |
Different Network Operators performing Origination and Termination
|
| - |
Mobile Termination, roaming
|
|
|
|
| |
| # |
MO#2 / S-S#2 / MT#2 |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
Single Network Operator performing Origination and Termination
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
| # |
CS-O / S-S#2 / MT#2 |
|
| |
| - |
CS Network originated Session routed towards IM CN subsystem, through MGCF
|
| - |
Single Network Operator performing Origination and Termination
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
| # |
MO#2 / S-S#3 / CS-T |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
PSTN Termination performed by Home Network of Originator
|
| - |
CS Network Termination
|
|
|
|
| |
| # |
MO#2 / S-S#2 / MT#1c |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
Single Network Operator performing Origination and Termination
|
| - |
Mobile termination, roaming, without I-CSCF in home network providing
configuration independence, terminating UE is busy, and not able or not willing to answer
the call
|
|
|
|
| |
|
| | |
| | Hiding |
| |
|
| # |
MO#1b / S-S#2 / MT#2 |
|
| |
| - |
Mobile origination, roaming, with I-CSCF in home network
providing configuration independence
|
| - |
Single Network Operator performing Origination and Termination
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
| # |
MO#2 / S-S#1b / MT#2 |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
Different network operators performing origination and termination,
with configuration hiding by both network operators
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
| # |
MO#2 / S-S#1c / MT#2 |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
Different network operators performing origination and termination,
with configuration hiding by originating network operator
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
| # |
MO#2 / S-S#1d / MT#2 |
|
| |
| - |
Mobile Origination, located in home network
|
| - |
Different network operators performing origination and termination,
with configuration hiding by terminating network operator
|
| - |
Mobile Termination, located in home network
|
|
|
|
| |
|
|
|
| IMS Signalling flows for Register |
|
|
|
|
|
