'Sip proxy' presentation slideshows

Fast-handoff Mechanisms for Wireless Internet

Presenter - Ashutosh Dutta 04/12/2005 IRT Group Meeting adutta@research.telcordia.com. Fast-handoff Mechanisms for Wireless Internet. Outline. Motivation Handoff Delay during Wireless Internet Roaming Related Work Multi-Interface/Inter-Technology Handoff Experimental Results

709 views • 56 slides

VoIP ????????

738 views • 45 slides

Internet Telephony

Internet Telephony. Shivkumar Kalyanaraman Based upon slides of Henning Schulzrinne (Columbia). Overview. Telephony: history and evolution IP Telephony: Why ? Adding interactive multimedia to the web Being able to do basic telephony on IP with a variety of devices

647 views • 39 slides

Columbia Verizon Research Security: VoIP Denial-of-Service (DoS)

Columbia Verizon Research Security: VoIP Denial-of-Service (DoS). Eilon Yardeni Columbia University Gaston Ormazabal Verizon Labs. Agenda. Project Overview Background What is the problem? Goals The SIP Threat Model DoS attack taxonomy Mitigation strategy

502 views • 37 slides

505 views • 37 slides

Introduction to SIP Based ENUM IP Telephony Infrastructure

Introduction to SIP Based ENUM IP Telephony Infrastructure. ??? ???????? Conference over IP Team ??? ?? yzy@netrd.iii.org.tw. Outline. Review The Next Generation Converged Network SIP based IP Telephony System Integrate ENUM with SIP Based IP Telephony system

517 views • 31 slides

Columbia Verizon Research Security: SIP Application Layer Gateway

Columbia Verizon Research Security: SIP Application Layer Gateway. Eilon Yardeni Columbia University Gaston Ormazabal Verizon Labs. Agenda. Team Project Overview Background What is the Problem Goals Technical Overview Hardware Platform Software Developed at Columbia

464 views • 30 slides

IP Multimedia Standardization

IP Multimedia Standardization. Standards Group August 2002. Outline. IP Multimedia Standardization in 3GPP and 3GPP2 3GPP IP Multimedia Subsystem (IMS) 3GPP2 IP Multimedia Domain (MMD) IP Core Network Harmonization Session Initiation Protocol (SIP) Internet Multimedia Protocols

488 views • 29 slides

Advanced Flooding Attack on a SIP Server

Advanced Flooding Attack on a SIP Server. Xianglin Deng, Canterbury University Malcolm Shore, Canterbury University & Telecom NZ. SIP Protocol. SIP is used as the connection mechanism for IP-based multimedia services, including VoIP

414 views • 28 slides

IP Core Networks Standards and Next Steps

IP Core Networks Standards and Next Steps. February 2003 Jack Nasielski. Outline. IP Multimedia Standardization in 3GPP and 3GPP2 3GPP IP Multimedia Subsystem (IMS) 3GPP2 IP Multimedia Domain (MMD) End-to-end signaling and media transport over IP

371 views • 25 slides

Automated Fault diagnosis in VoIP

Automated Fault diagnosis in VoIP. 31st March,2006 Vishal Kumar Singh and Henning Schulzrinne. VoIP Diagnosis. What is automated VoIP diagnosis Determining failures in network Automatically finding the root cause of the failure Why VoIP diagnosis

422 views • 22 slides

An Analysis of the UMTS Control Plane

An Analysis of the UMTS Control Plane. Michael Barry, Dimitra Vali, Dorgham Sisalem, michael.barry@ul.ie p1111@eurescom.de. Introduction. Eurescom P1111 SIP and NGNs Quality Assurance and SIP Implications for UMTS. P1111 Mission Statement.

296 views • 20 slides

Tainet IP PBX solutions

Tainet IP PBX solutions. Tainet Communication System Corp. Agenda. What is IP PBX Introduction of Tainet IP PBX Applications. What Is IP PBX. An IP PBX delivers functions as dial-tone, tele-conference, call transfer, and dial others by ext. # ,As well as many other value add services.

322 views • 17 slides

Service routing in 3GPP IP Multimedia Subsystem

410 views • 16 slides

802.11g SIP DECT VoIP Router VIP-462DG

802.11g SIP DECT VoIP Router VIP-462DG. Product Overview Key Features Application Comparison. Phone usage status. Line usage status. DECT usage status. WLAN connection status. SIP Proxy registering status. Product Overview. VIP-462DG Front View. WLAN/DECT Antenna. WLAN NB.

327 views • 15 slides

SIP Gateway

SIP Gateway. MOSA 3700. Feb 2, 2004. MOSA 3700. Standard SIP gateway (RFC 3261) The same as Cisco ATA 186 But Powerful. SIP Proxy Server. IP Network. SIP Basic Structure. CO. MOSA 3704B. MOSA 3704A. Taipei sip4@vodtel.com. Shanghai sip1@vodtel.com. SIP Phone sip3@vodtel.com. PC

342 views • 12 slides

250 views • 10 slides

Geographical distribution of Media Relays

Geographical distribution of Media Relays. Part of Global SIP framework. Adrian Georgescu ag@ag-projects.com Dan Pascu dan@ag-projects.com. NAT traversal - best practices.

216 views • 9 slides

Message Waiting for SIP

Message Waiting for SIP. Rohan Mahy rohan@cisco.com. Current Expectations. Users expect notification of new messages wherever they are IP phones/appliances Analog or PBX phones Mobile phones MWI is traditionally just a boolean Must provide comparable service on SIP-capable devices.

207 views • 8 slides

Emergency Text Messaging using SIP MESSAGE draft-kim-ecrit-text-00

Emergency Text Messaging using SIP MESSAGE draft-kim-ecrit-text-00. Jong Yul Kim Wonsang Song Henning Schulzrinne Pietr Boni Michael Armstrong. IPR disclosure: https://datatracker.ietf.org/ipr/1253/. Introduction. How to use page-mode messaging for emergency?

306 views • 7 slides