The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The service layer in IMS is undergoing substantial architectural enhancement. IMS communication services, such as voice, video, messaging (incl. chat mode), are facilitated through designated and standardized SIP application servers. Traditionally, operators have a need for enhancing the service experience for their end-users [6]. These enhancements are implemented in the actual SIP-AS’s as well as...
The European Commission (EC) mandates that from July 1, 2014, Mobile network operators (MNO) shall offer the possibility to other parties, referred to as Alternative roaming provider (ARP), to offer ‘roaming services’. When a subscriber of a national MNO, referred to as Domestic service provider (DSP) in this context, travels abroad, that person should be entitled to receive voice, data, SMS and MMS...
We study the impact of degree-preserving rewiring on the routing table configuration in an OSPF network. Degree-preserving rewiring may be applied to optimize specific network characteristics, such as assortativity. Rewiring has significant impact on IP router tables. This manifests itself through the number of nodes that are affected by the rewiring and the average number of routing table entries...
The present paper builds on to previous papers presented at ICIN. We present and evaluate trends in the IMS network. Specifically, we look at how Multimedia communication service, including, but not limited to, voice calls, video calls and messaging, can be enhanced with Value Added Services (VAS). VAS has, since its inception two decades ago, undergone architectural changes, in order to adapt to...
This paper describes usage of operator-independent Public user identities (PUI) for IP multimedia communication services for enterprises. This is a particular relevant topic for enterprises that wish to use their own domain name for public identification for (IMS based) communication services. Whereas usage of enterprises-specific domain names is common for services like mail and HTTP, it has some...
The present paper introduces the concept of network based service triggering in IMS, as well as the functional entity that facilitates this. Network based service triggering ties in with the evolution in IMS interconnect networks and corporate IP networks. New SIP proxy functionality is proposed, Transit CSCF. This Transit CSCF may be realized through enhancement of an existing SIP proxy or may be...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.