Interworking Signaling Enhancements For H.323 And SIP VoIP
White Papers The Interworking Signaling Enhancements for H.323 and SIP VoIP feature enables VoIP networks to properly signal the setup and tear-down of calls, including generating in-band tones and announcements when needed at the originating or terminating...
[December 27, 2004, 2:00]
Standards Snapshot: The State Of The Big 3 In VoIP Signaling Protocols
White Papers We also thought it would be a good idea to take inventory of the three major standards that are presently being debated as candidates for voice-over-IP signaling: H.323; MGCP/Megaco; and SIP. This document presents an overview of H.323, MGCP/Megaco...
[January 2, 2004, 3:17]
VoIP QoS
White Papers It introduces basic signaling protocols for VoIP like H.323 and SIP. This white paper discusses QoS (Quality of Service) in VoIP networks. In then introduces different parameters that affect Quality of Service over a VoIP network.
[July 18, 2008, 1:01]
Overview Of The Session Initiation Protocol
White Papers Like other VoIP protocols, SIP is designed to address the functions of signaling and session management within a packet telephony network. Signaling allows call information to be carried across network boundaries.
[December 27, 2004, 2:00]
VGSC
Downloads Only simultaneous signaling/media/T.38 fax packet support across any firewall. Key Features: Maximum call completion rate and maximum voice service duration SIP core standards and a variety of drafts supported Proprietary link layer protocol for...
[July 17, 2008, 16:02]
Billion Softswitch Standard Edition
Downloads Main features include: SIP/H323 signaling conversion, maintenance of connection between two diverse gateways or gateways placed in various subnets, centralized connection with billing system, querying routing servers for terminating gateways...
[April 24, 2006, 16:31]
SIP Flaw Causes Problems For Cisco
News SIP is an application layer signaling protocol used during Internet sessions to initiate conferencing, telephony, presence, events notification, and instant messaging. The Session Initiation Protocol (SIP) has been at the centre of growing interest...
[March 10, 2003, 10:00]
Denial Of Service Attacks And SIP Infrastructure: Attack Scenarios And Prevention Mechanisms
White Papers As a signaling protocol the paper investigates here the Session Initiation Protocol (SIP). This paper addresses the issue of Denial of Service (DoS) attacks targeting the hardware and software of voice over IP servers or by misusing specific...
[October 14, 2008, 0:00]
Wholesale Carrier Services: A Great Fillip To VoIP
Blog The Session Initiation Protocol (SIP) is a signaling protocol that uses communication sessions for providing initiation and termination of minutes to companies that lease services from the wholesalers.
[May 6, 2008, 10:03]
