Signaling for Internet telephony

Schulzrinne, Henning; Rosenberg, Jonathan

doi:10.1109/icnp.1998.723751

Cited by 33 publications

(13 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A GCSP frame consists of a header and a body as shown in figure 1. GCSP is an apphcation level protocol which uses UDP as SIP does [28] or could also use the NSIS transport layer. TCP can be used to support SSL encryption and firewall traversal.…”

Section: Gcsp Mechanismsmentioning

confidence: 99%

See 1 more Smart Citation

The Generic Context Sharing Protocol GCSP

Chahine

Rigault

2006

IFIP the International Federation for Information Processing

View full text Add to dashboard Cite

Abstract. This paper proposes a new signaling paradigm and a new signaling protocol called the Generic Context Sharing Protocol (GCSP) for the construction of a global control plane over present and future communication networks. After identifying the special nature of the control plane software involved in the setup of a conversational service instance it examines the various mechanisms for information sharing which leads to our new proposal. We show that this new data-based protocol is better suited to control plane requirements than the present day's command-oriented signaling mechanisms. We indicate the basic principles of the protocol and we give a brief description of the generic context. We show the place of this proposal in the present day research efforts and we mention a practical implementation case.

show abstract

Section: Gcsp Mechanismsmentioning

confidence: 99%

“…Also some implementation of TCP can have delays of 6 and 24 seconds in the retransmission of the initial SYN packet. These reasons made SIP go on UDP and not TCP [28] and keep TCP for firewall traversal transport-layer security protocol such as TLS [31].…”

Section: Bodymentioning

confidence: 99%

The Generic Context Sharing Protocol GCSP

Chahine

Rigault

2006

IFIP the International Federation for Information Processing

View full text Add to dashboard Cite

show abstract

“…It supports uni-cast, mesh and multicast conferences as well as their combinations [6]. It uses a textual encoding of its messages with syntax very similar to HTTP.…”

Section: Session Initiation Protocolmentioning

confidence: 99%

Design and implementation of SIP UA for a manufacturing network

Kim

Jang

Chung

et al. 2004

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Session initiation protocol (SIP) provides advanced signaling, controlling its functionality for a variety of multimedia services. It efficiently and scalably locates resources based on a location-independent name to negotiate session characteristics. To a manager of manufacturing facilities, it gives a command to monitor his facilities equipped with SIP via the Internet. The manager can watch the facilities and his field workers could be given direction through video and voice.

show abstract

“…In turn, it may be easily used to construct a variety of transfer and multiparty services. 34 As another example of SIP's ability to support new services, the PSTN and IP Internetworking (PINT) working group of the IETF is in the process of standardizing a protocol for click-to-dial and click-to-fax services. Click-to-dial allows a user to click on an icon while Web browsing, and receive a phone call from a service representative on the GSTN.…”

Section: Client Servicesmentioning

confidence: 99%

The Session Initiation Protocol: Providing advanced telephony services across the Internet

Schulzrinne¹,

Rosenberg²

2002

Bell Labs Tech. J.

View full text Add to dashboard Cite

During the past few years, Internet telephony has evolved from a toy for the technically savvy to a technology that, in the not too distant future, may replace the existing circuit‐switched telephone network. Supporting the widespread use of Internet telephony requires a host of standardized protocols to ensure quality of service (QoS), transport audio and video data, provide directory services, and enable signaling. Signaling protocols are of particular interest because they are the basis for advanced services such as mobility, universal numbers, multiparty conferencing, voice mail, and automatic call distribution. Two signaling protocols have emerged to fill this need: the ITU‐T H.323 suite of protocols and session initiation protocol (SIP), developed by the Internet Engineering Task Force (IETF). In this paper we examine how SIP is used in Internet telephony. We present an overview of the protocol and its architecture, and describe how it can be used to provide a number of advanced services. Our discussion of some of SIP's strengths—its simplicity, scalability, extensibility, and modularity—also analyzes why these are critical components for an IP telephony signaling protocol. SIP will prove to be a valuable tool, not just for end‐to‐end IP services, but also for controlling existing phone services.

show abstract

Signaling for Internet telephony

Abstract: Abstract

Cited by 33 publications

References 21 publications

The Generic Context Sharing Protocol GCSP

The Generic Context Sharing Protocol GCSP

Design and implementation of SIP UA for a manufacturing network

The Session Initiation Protocol: Providing advanced telephony services across the Internet

Contact Info

Product

Resources

About