The IMS Lantern

After a long summer break, here is a fourth post on the details of the IMS service architecture related to the handling of SIP signalling. W...

This is the third (but not last) post in a series that tries to describe the service-related and IMS-specific mechanisms used to route SIP r...

Today is a "lazy post" day. I think I might do it from time to time. In April, I made a series of three posts on the infamous IMS ...

In the previous post , I showed that, in a typical end-to-end SIP interaction between two IMS clients, there is a succession of routing phas...

This post is the first in a series that will describe how the routing of SIP service-related requests is performed in the IMS. Before going ...

In this post, I will try to present some potential usage of Public Service Identities (PSIs) for the delivery of IMS services. Services to...

After IMS Public User Identities (IMPUs) , here is a first post on the second type of identity specified in 3GPP IMS specifications. I will ...