This paper presents network architecture options along with their service discovery mechanisms, enabling realtime interactive multimedia session applications using the Internet Engineering Task Force’s (IETF) standard Session Initiation Protocol (SIP) in MANET. Two SIP MANET networking architectures are presented, both with and without a SIP proxy/registrar service. Effectively integrated into ...

The Media Resource Control Protocol Version 2 (MRCPv2) allows client hosts to control media service resources such as speech synthesizers, recognizers, verifiers, and identifiers residing in servers on the network. MRCPv2 is not a "stand-alone" protocol -it relies on other protocols, such as the Session Initiation Protocol (SIP), to coordinate MRCPv2 clients and servers and manage sessions betw...

Voice communications on IP networks use owner protocols as well as standards like SIP, MGCP and H323. In this paper we propose a new method for transparent traversal of NATed (Network Address Translated) networks for the SIP (Session Initiation Protocol) protocol. Although SIP is an application layer protocol, its operation is affected by address translation. This is because SIP uses network la...

This document specifies a Diameter application that can be used to implement real-time credit-control for a variety of end user services such as network access, Session Initiation Protocol (SIP) services, messaging services, and download services.

Recently, Tsai proposed an efficient nonce-based authentication scheme for session initiation protocol (T-SIP for short). However, the author shall show that T-SIP is vulnerable to perfect forward secrecy, password guessing attacks, and insider attacks.

This paper presents a software prototype of wireless network for the Internet Things (IoT) based on DECT (Digital Enhanced Cordless Telecommunication) standard. It proposes an architecture encapsulating commands from most common IoT protocol, MQTT (Message Queuing Telemetry Transport), into SIP (Session Initiation Protocol) packets. A module is created to embed MQTT-SN (MQTT Sensor Networks) pa...

Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs) exist on the signaling and media paths between the endpoints. This document describes the behavior of B2BUAs when Secure Real-time Transport (SRTP) security context is set up with the Datagram Transport Layer Security (DTLS) protocol.

SIP (The Session Initiation Protocol) is widely used as the signaling protocol for various services in the omnipresent environment. SIP is textual based protocol so the ability to process SIP messages quickly is critical for the performance of consumer electronic devices, such as SIP phone and the various Gateway. Our work enables homogeneous communication between heterogeneous distributed devi...

Roaming services allow users that have a contract with a voice service provider to use access resources owned by other providers known as internet access providers. This draft proposes a tokenbased Authentication, Authorization, Accounting (AAA) and billing model for roaming users supporting the Session Initiation Protocol (SIP). It also introduces a protocol solution for the proposed model tha...

Session Initiation Protocol (SIP) is a new signaling protocol designed to establish multimedia sessions in telecommunication networks. In this paper, we suggest the extension of SIP functionalities to coordinate QoS mechanisms deployed in IP networks, and especially in DiffServ domain. Indeed, the interaction between small and big TCP sessions may have dramatic consequences on small TCP session...