Measuring quality

SIP articles, tutorials and other resources

Here you can find various resources about SIP.

SIP basics

Peer-to-Peer Internet Telephony using SIP
SIP: Evolution in Converged Communications
SIP: Protocol Overview
SIP Communications For Dummies
SIP Intoduction
SIP Registration and User Location
SIP Server Types Technical Overview
SIP Tutorial: SIP to PSTN Call Flow
The Session Initiation Protocol

SIP Performance and Testing

Alcatel - Generic Gateway Interoperability Tests
Architecture and testbed implementation of vertical handovers based on SIP session border controllers
Best Practices for VoIP Network Assurance and Performance Management
Business case for VoIP Readiness Network Assessment
CommuniGate - Telco VoIP Scalability Test Results for 10 Million Subscribers
Empirical Analysis of Handoff Performance for SIP, Mobile IP, and SCTP Protocols
Evaluating Performance Characteristics of SIP over IPv6
Evaluating Performance of SIP Infrastructure
Evaluating SIP Proxy Server Performance
Evaluation Framework for Highly Available and Scalable SIP Server Clusters
Experiences of using TTCN-3 for Testing SIP and OSP
Failover and Load Sharing in SIP Telephony
Handbook for Successful VoIP Deployment: Network Testing, QoS, and More
Huawei SIP ATA Interoperability Test Case
Impact of TLS on SIP Server Performance
IMS Network Testing (INT); Part 1: Protocol Implementation Conformance Statement (PICS)
Interoperability Testing for SIP
IP Multimedia Subsystem (IMS) Test Environment Simulator Methodology for SIP Infrastructure Performance Testing
Practical Analysis of Asterisk SIP Server Performance
Performance Analysis of Identity Management in the Session Initiation protocol
Performance Evaluation of SIP Authentication and TLS
Performance, validation and testing with the Network Simulation Cradle - TCP and SIP Protocol Conformance Testing a SIP Registrar: an Industrial Application of Formal Methods
RADCOM Network Test Solutions Guaranteeing Carrier Grade Performance
Real-world SIP Interoperability: Still an Elusive Quest
RFC2544: How it Helps Qualify a Carrier Ethernet Network
RFC3261 UAC/UAS Test Cases
Scenarios for Testing Reliable Transmission of Provisional Responses in SIP User Agent
SIP ATA Interoperability Test Case
SIP Compliance and Interoperability
SIP End to End Performance Metrics
SIP Infrastructure Performance Testing
SIP Interop Test Description
SIP Performance Benchmarking
SIP Registration Stress Test
SIP Robustness Testing for Large-Scale Use
SIP Server Security with TLS: Relative Performance Evaluation
SIP Testing Checklist
SIP Torture Test Messages
The Impact of TLS on SIP Server Performance
Test Bed for Integrating IMS and PSTN services over 3G Testing SIP Call Flows using XML Protocol Templates
Testing a VOIP user agent Towards effective SIP load Balancing
Tutorial On SIP Application Server Performance And Benchmarking
Verifying VoIP Capacity (SPIRENT)
VoIP Network Readiness Assessment: Why it’s Essential and Cost-Effective
VoIP Performance Evaluation on VMware vSphere® 5
Vulnerability test system for SIP network elements
Your guide to troubleshoot VoIP - Viavi

Performance of Wireless LAN

Implementation of Delay Assurance Service for Voice Applications in Wireless LANs
Inferring Queue State by Measuring Delay in a WiFi Network
Link-Aware Protection for Improving Performance of Loss and Delay Sensitive Applications in Wireless LANs
Measuring Round Trip Times to Determine the Distance between WLAN Nodes
Methods to Improve TCP Throughput in Wireless Networks With High Delay Variability
Throughput-Delay Trade-off in Wireless Networks
Performance Analysis of Wired and Wireless LAN Using Soft Computing Techniques - A Review
Performance Analysis of Wireless LAN Access Points
Performance Analysis of the IEEE 802.11 Wireless LAN Standard
Performance Evaluation and Delay Modelling of VoIP Traffic over 802.11 Wireless Mesh Network
Support of voice services in IEEE 802.11 wireless LANs
Throughput and delay analysis of IEEE 802.11 protocol
Throughput and Delay Performance of IEEE 802.11e Wireless LAN with Block Acknowledgments
Voice capacity in IEEE 802.11 wireless LANs
Wireless Network Delay Estimation for Time-Sensitive Applications

VoIP monitoring

Experiences of VoIP Traffic Monitoring in a Commercial ISP
Monitoring and Managing Voice over Internet Protocol (VoIP) (Native Instruments)
Monitoring and Troubleshooting VoIP Networks with a Network Analyzer
Monitoring VoIP with Cisco Network Analysis Module
Open Source VoIP Traffic Monitoring
Simple analysis of the impact of packet loss and delay on voice transmission quality VoIP service quality monitoring using active and passive probes
VoIP Traffic Monitoring System based on NetFlow v9

SIP Security and Hacking

A Framework for Detecting Malformed Messages in SIP Networks
Analysis of Security Threats and Tools in SIP-Based VoIP Systems
Basic Vulnerability Issues for SIP Security
Developing a Robust and Efficient Authentication Infrastructure for Carrier-Scale VoIP Networks
Enumerating and Breaking VoIP
Hacking VoIP Exposed
Multiple Design Patterns for Voice over IP (VoIP) Security
Novel Approach for Security Issues in VoIP Networks in Virtualization with IVR
Protect Yourself Against VoIP Hacking
Secure SIP: A Scalable Prevention Mechanism for DoS Attacks on SIP Based VoIP Systems
Securing VoIP Networks using graded Protection Levels
Security testing of SIP implementations
SIP Security and the Great Fun with Firewall/NAT
SIP Security Mechanisms: A State-of-the-Art Review
SIP Security Testing Framework
SIP Penetration Test System
SIP Penetration Testing in CESNET
SIP Stack Fingerprinting and Stack Difference Attacks
Storming SIP Security
Unwanted traffic and information disclosure in VoIP networks
VoIP Defender: Highly Scalable SIP-based Security Architecture

Denial of Service (DoS) Attacks and SPAM Mitigation

A secure P2P SIP system with SPAM prevention
Denial of Service on SIP VoIP Infrastructures Using DNS Flooding
DoS Attacks Targeting SIP Server and Improvements of Robustness
Evaluating DoS Attacks Against SIP-Based VoIP Systems
Preventing SPAM for SIP-based Instant Messages and Sessions
Protecting SIP against Very Large Flooding DoS Attacks
RFC4987. TCP SYN Flooding Attacks and Common Mitigations
Robust Mechanism For Defending Distributed Denial Of Service Attacks On Web Servers
Scalable Detection of SIP Fuzzing Attacks
SIP Proxy Robustness against DoS Attacks
SIP Service Providers and The SPAM Problem
SPAM Detection in Voice-over-IP Calls through Semi-Supervised Clustering
SPAM Over Internet Telephony And How To Deal With It
Testing Dialog-Verification of SIP Phones with Single-Message Denial-of-Service Attacks
Two layer Denial of Service prevention on SIP VoIP infrastructures
Unregister Attacks in SIP
Voice-over-IP SPAM Detection and Reaction System

SIM BOX (GSM Gateway) fraud detection, international grey traffic identification

Altima - AI.Fraud system
Analysis and Detection of SIMBOX Fraud in Mobility Networks
Data Analysis to Detect Illegal VoIP Traffic with Call Detail Records (CDRs)
Handling Menace on International Grey Traffic
Identification of Hidden VoIP (Grey Traffic)
SIM BOX Fraud Detection using SVM and NNs

Fax over IP

T.4 - Standartization of Group 3 Facsimile Terminals for Document Transmission
T.30 - Procedures for document facsimile transmission in the general switched telephone network
RFC3362. Real-time Facsimile (T.38) - image/t38 MIME Sub-type Registration

SIP standard documents

ED-137: Interoperability Standards for VoIP ATM Components Part 1 Radio
ED-137: Interoperability Standards for VoIP ATM Components Part 2 Telephone
ED-137: Interoperability Standards for VoIP ATM Components Part 3 Recording
RFC2327. SDP: Session Description Protocol
RFC2396. Uniform Resource Identifiers (URI): Generic Syntax
RFC2474. Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
RFC2833. RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
RFC2976. The SIP INFO Method
RFC3261. SIP: Session Initiation Protocol
RFC3262. Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
RFC3264. An Offer/Answer Model with the Session Description Protocol (SDP)
RFC3311. The Session Initiation Protocol (SIP) UPDATE Method
RFC3515. The Session Initiation Protocol (SIP) Refer Method
RFC3550. RTP: A Transport Protocol for Real-Time Applications
RFC3725. Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP)
RFC4028. Session Timers in the Session Initiation Protocol (SIP)
RFC4240. Basic Network Media Services with SIP
RFC4353. A Framework for Conferencing with the Session Initiation Protocol (SIP)
RFC4412. Communications Resource Priority for the Session Initiation Protocol (SIP)
RFC4722. Media Server Control Markup Language (MSCML) and Protocol
RFC5039. The Session Initiation Protocol (SIP) and SPAM

VoIP Implementation, Deployment, TDM to VoIP Migration

7 Myths and Facts of Wireless Backhaul IP Migration
Benefits of Migrating IVR Services to SIP/RTP as a Prelude to New Media Service Delivery
Best Practices for IP Telephony Migration
Best Practices for VoIP in the Contact Center Part 2: Important Steps for a Successful Implementation
Best Practices for VoIP in the Contact Center Part 1: Planning a Successful Transition
Deploying VoIP in the Enterprise
Design and Implementation of VoIP Service on Open IMS and Asterisk Servers Interconnected through Enum Server
Design Considerations for Voice over Internet Protocol
Essential Guide to VoIP Implementation and Management
Implementation of Secure Real Time Transport Protocol on VoIP over Wired in Campus Network Environment
Implementation of the Internet Call Waiting Service using SIP
Implementing VoIP Service Over Wireless Network
Implementing VoIP: Cover the Bases
Migrating from TDM to IP: Getting the Ball Rolling
Migration from legacy TDM to IP Voice
Migration of Mobicents SIP Servlets on a Cloud Platform
Model-Driven Design of VoIP Services for E-Learning
Qualitative Factors that Impact Real Implementing VoIP in Private Networks
Research on the Implementation of VoIP Service in Mobile Ad-hoc Network
Smart Path to Enterprise IP Migration
TDM Services over IP Networks
TDM to VoIP Migration: the Unpredictable Pace of Change
TDM to VoIP Migration: Your Network, Your Timeline
TDM Traffic over SDH and IP
Ten Steps to a Successful VoIP Implementation
VoIP and IPT Best Practices for Implementation. A Guide to Ensuring a Solid FoundationA Foundation
VoIP Project: System Design


5 Culprits that Kill Asterisk IP-PBX Performance and what you can do about them.pdf
Asterisk - The Basics
Asterisk - The Future of Telephony (O Reilly)
Asterisk 10 Panasonic KX-UT670 Interoperabilty Report
Asterisk and ENUM
Asterisk and SS7 Performance Tests
Asterisk DAHDI Libpri Quickstart Installation
Asterisk Quick Start Guide
Fax for Asterisk Administrator Manual
How to Reduce Asterisk System Loads by 70 percent
Performance Benchmark Test for Asterisk B2BUA
Test Report of Atom CPU with asterisk G729-G711 Transcoding
Unusual Uses - What You Didn't Know Asterisk Could Do


FreeSWITCH as a Kickass SBC
FreeSwitch Instruction Manual
How does FreeSWITCH compare to Asterisk
Integrating Microsoft Lync 2010 and 3CX Phone System using Freeswitch
VoIP with FreeSWITCH Talk Soft


Abstractions for Programming SIP BacktoBack User Agents
Applying SIP B2BUA for mobile WiMax network architecture
Beyond Interoperability: Network Security as a Voice over IP (VoIP) Enabler
CallXML Guide (Phone Banking)
CDR Description and Formats
Decision Matrix – Selecting an IVR Vendor in the Enterprise (Competitor Focus)
Design Your Own VoIP Solution with a Blackfin® Processor
Estimation of RTT and Bandwidth for Congestion Control Applications in Communication Networks
Failover, Load Sharing and Server Architecture in SIP Telephony
Implementation and Performance Evaluation of a P2PSIP Distributed Proxy/Registrar
Implementing the VoIP Network
Integrating VoiceXML with SIP services
Interactive Voice Response (IVR) Control Package for the Media Control Channel Framework
Introduction to IMS Application Development and Integration
Mechanisms for Robust Multimedia Conferencing Using SIP
MSCML Protocol: The Key to Unlocking a New Generation of Multimedia SIP Services
NAT Traversal in SIP
Potentials of P2P-SIP Architecture in Telecommunications
Procedures for real-time Group 3 facsimile communication over IP networks
Providing Media Control to SIP-based IVR Applications: The IVRObject Approach
Q.850. Usage of cause and location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User Part
SIP Conferencing
SIP Express Router
SIP Programming Call Processing Language
SIP Trunking a New Voice in Communications Service
SIP Trunking Benefits and Best Practices
SIP Trunking Manual (Samsung)
SIPPEER: A Session Initiation Protocol (SIP)-based Peer-to-Peer Internet Telephony Client Adaptor
Six Steps To Getting Your Network Ready For Voice Over IP
Specification and Evaluation of Transparent Behavior for SIP Back-to-Back User Agents
Survey of Open Source Products for Building a SIP Communication Platform
Traversal of IP Voice and Video Data through Firewalls and NATs
Understanding SIP exchanges by experimenting
Unifying SIP and WEB Worlds with LUA
VoIP in Industrial Networks
What VoIP Requires From a Data Network


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