This paper present an example of call control using the Session Initiation Protocol (SIP) for multimedia call management in the “all IP” architecture for the core network of UMTS. The first part of this publication gives an overview of the 3GPP IP-based UMTS core network. The second part introduces an interworking scenario between the UMTS core network and the SIP-enabled public Internet. The c...

This paper specifies a two-step migration towards a stronger authentication in the Session Initiation Protocol. First, we add support for a Password Authenticated Key Exchange algorithm that can function as a drop-in replacement for the widely adopted Digest Access Authentication mechanism. This new authentication mechanism adds support for mutual authentication, is considered stronger and can ...

Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract The Session Initiation Protocol (SIP) supports the initiation, modification, and termination of media sessions between user agents. These sessions are managed by SIP dialogs, which represent a SIP relationship betwe...

The SIPCLF working group has defined a Common Log Format (CLF) framework for Session Initiation Protocol (SIP) servers. This CLF mimics the successful event logging format found in well-known web servers like Apache and web proxies like Squid. This document proposes an indexed text encoding format for the SIP CLF that retains the key advantages of a text-based format while significantly increas...

Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working ...

This document specifies a Session Initiation Protocol (SIP) profile of Security Assertion Markup Language (SAML) as well as a SAML SIP binding. The defined SIP SAML Profile composes with the mechanisms defined in the SIP Identity specification and satisfy requirements presented in "Trait-based Authorization Requirements for the Session Initiation Protocol (SIP)". Status of this Memo This Intern...

Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working ...

Current techniques for protocol design focus on modules that encapsulate the protocol engines that execute on different network nodes. While this modularization is invaluable for independent implementation of network elements, we believe it does not adequately support the design, analysis, or evolution of a protocol. In this paper, we propose a complementary modularization that tackles this pro...

This document presents an extension to the Session Initiation Protocol (SIP)-Specific Event Notification mechanism for subscribing to a homogeneous list of resources. Instead of sending a SUBSCRIBE for each resource individually, the subscriber can subscribe to an entire list and then receive notifications when the state of any of the resources in the list changes. Roach, et al. Standards Track...

This document presents an extension to the Session Initiation Protocol (SIP)-Specific Event Notification mechanism for subscribing to a homogeneous list of resources. Instead of the subscriber sending a SUBSCRIBE for each resource individually, the subscriber can subscribe to an entire list, and then receive notifications when the state of any of the resources in the list changes. Roach, et al....