VOIP is an acronym for Voice Over IP, or in more common terms phone service over the Internet.
If you have a reasonable quality Internet connection you can get your phone service delivered to you through your Internet connection instead of from your local phone company.
 
  Some people use VOIP in addition to their traditional phone service, since VOIP service providers usually offers lower rates than the traditional phone companies, but sometimes don't offer full 911 service, phone directory listings, 411 service, etc.  

70-291 - Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure
70-290 - Managing and Maintaining a Microsoft Windows Server 2003 Environment
70-285 - Designing a Microsoft Exchange Server 2003 Organization
70-284 - Installing, Configuring, and Administering Microsoft Exchange 2003 Server
70-282 - RE's Designing, Deploying, and Managing a Network Solution for a Small- and Medium-Sized Business
70-281 - RE's Planning, Deploying, and Managing an Enterprise Project Management Solution
70-272 - Supporting Users and Troubleshooting Desktop Applications on a Microsoft Windows XP Operating System
70-271 - Supporting Users and Troubleshooting a Microsoft Windows XP Operating System
70-270 - Microsoft Windows XP Professional
70-244 - Supporting and Maintaining a Microsoft Windows NT Server 4.0
70-234 - Designing and Implementing Solutions with Microsoft Commerce 2000 Server
70-232 - Implementing and Maintaining Highly Available Web Solutions with Microsoft Windows 2000 Server Tech
70-229 - Designing and Implementing Databases with Microsoft SQL Server 2000 Enterprise Edition
70-228 - Installing, Configuring and Administering Microsoft SQL Server 2000, Enterprise Edition
70-227 - Installing, Configuring, and Administering ISA Server 2000, Enterprise Edition
70-226 - Designing Highly Available Web Solutions
70-225 - Designing and Deploying a Messaging Infrastructure with Microsoft Exchange 2000 Server
70-224 - Installing, Configuring and Administering Microsoft Exchange 2000
70-223 - Installing, Configuring, and Administering Clustering Services by Using Windows 2000 Advanced Server
70-222 - Migration from Microsoft Windows NT 4.0 to Microsoft Windows 2000
70-221 - Designing a Microsoft Windows 2000 Network Infrastructure
70-220 - Designing Security for a Microsoft Windows 2000 Network
70-219 - Designing a Microsoft Windows 2000 Directory Services Infrastructure
70-218 - Managing a Microsoft Windows 2000 Network Environment
70-217 - Implementing and Administering a Microsoft Windows 2000 Directory
70-216 - Implementing and Administering a Microsoft Windows 2000 Network Infrastructure
70-215 - Installing, Configuring and Administering Microsoft Windows 2000 Server
70-214 - Implementing and Administering Security in a Microsoft Windows 2000 Network
70-210 - Installing, Configuring and Administering Microsoft Windows 2000 Professional
70-089 - Planning, Deploying, and Managing Microsoft Systems Management Server 2003
70-086 - Implementing and Supporting Systems Management Server 2.0
10-184 - US MS-03-010 Microsoft CRM Installation and Configuration v. 1.2
1T0-035 - McAfee Certified Intranet Defense Specialist
117-202 - Linux Networking Administration
117-201 - Advanced Administration
117-102 - General Linux, Part 2
117-101 - General Linux, Part 1
190-623 - Notes Domino 6 Configuring Domino Web Servers
190-622 - RE's Notes Domino 6 Managing Servers and Users
190-621 - RE's Notes Domino 6: Building the Infrastructure
190-620 - RE's Notes Domino 6 System Administration Operating Fundementals
190-612 - Notes Domino 6 Developing Web Applications
190-611 - Notes Domino 6 Application Development Intermediate Skill
190-610 - RE's ND6 Application Development Foundation Skills
190-601 - Domino 6 Application Development Update
190-522 - Deploying Domino R5 Applications
190-521 - Implementing a Domino R5 Infrastructure
190-520 - Maintaining Domino R5 Servers and Users
190-513 - Using JavaScript in Domino R5 Applications
190-510 - Domino R5 Designer Fundamentals
LE0-406 - EMC Legato Certified Availability Administrator
JN0-530 - Juniper Networks Certified Internet Specialist (NCIS-FWV)
JN0-520 - Juniper Networks Certified Internet Associate, FWV
JN0-303 - Juniper Networks Certified Internet Specialist
JN0-201 - Juniper Networks Certified Internet Associate
JN0-130 - Juniper Networks Certified Internet Specialist (JNCIA-E)
SSCP - System Security Certified Practitioner (SSCP)
CISSP - Certified Information Systems Security Professional (CISSP)
000-872 - IBM Tivoli Storage Manager V5.2 Implementation
000-799 - IBM Tivoli Storage Manager V5.3 Implementation
000-779 - IBM Tivoli Workload Scheduler V8.2 Implementation
000-755 - Tivoli Fundamentals of On Demand Automation
000-706 - DB2 UDB V8.1 for Linux, UNIX, and Windows Database Administration Upgrade
000-704 - DB2 UDB V8.1 for Linux, UNIX and Windows Advanced Database Administration
000-701 - IBM DB2 UDB V8.1 for Linux, UNIX, and Windows Database Administration
000-700 - IBM DB2 UDB V8.1 Family Fundamentals
000-670 - xSeries Sales V2
000-640 - Test Management
000-639 - Rational Unified Process
000-631 - ClearCase for UNIX
000-630 - ClearCase for Windows
000-594 - IBM Tivoli Enterprise Console V3.9 Implementation
000-516 - DB/2 Administration for OS/390
000-514 - DB2 UDB V7.1 Family Application Development
000-513 - DB/2 Administration for Windows, Linux & OS/2
000-486 - Object-Oriented Analysis and Design with UML Test
000-484 - Enterprise Connectivity with J2EE V1.3
000-442 - DB2 Content Manager V8
000-389 - IBM TotalStorage Networking and Virtualization Architecture, Version 2
000-388 - Storage Sales, Version 6
000-385 - High End Tape Solutions, Version 3
000-382 - IBM Open Systems Storage Solutions, Version 2
000-356 - iSeries System Command Operations V5R2
000-355 - iSeries System Administration V5R2
000-348 - IBM WebSphere MQ V5.3 System Administration
000-341 - WebSphere Application Server V5.0, Multiplatform Administration
000-299 - WebSphere Business Integration Message Broker V5, Solution Design
000-297 - WebSphere MQ V5.3 Solution Development
000-296 - WebSphere MQ V5.3 Solution Design
000-294 - IBM WebSphere MQ V5.3 System Administration
000-293 - WebSphere InterChange Server V4 and Toolset Deployment
000-287 - Enterprise Application Development with IBM WebSphere Studio, V5.0
000-285 - Developing with IBM WebSphere Studio, V5.0
000-267 - AS/400 RPG IV Developer
000-266 - AS/400 RPG IV Programmer
000-259 - i5 iSeries Solution Sales V5R3
000-257 - Enterprise Application Development with IBM Rational Application Developer V6.0
000-256 - Application Development with IBM Rational Application Developer for WebSphere Software
000-255 - Developing with IBM Rational Application Developer for WebSphere Software V6.0
000-252 - IBM Certified System Administrator - WebSphere Application Server Network Deployment V6.0
000-239 - p5 Solution Sales
000-238 - p5 and pSeries Technical Sales Support
000-237 - pSeries HACMP for AIX 5L
000-236 - AIX 5L Communications
000-235 - AIX 5L Problem Determination
000-234 - AIX 5L Performance and Systems Tuning
000-233 - AIX 5L Installation,Backup and System Recovery
000-232 - pSeries Administration and Support for AIX 5L V5.2
000-197 - pSeries Enterprise Technical Support
000-191 - pSeries AIX System Administration
000-154 - Web Developer
000-074 - xSeries - Windows 2000/2003 Install+Performance Optimization
000-071 - xSeries Technical Principles V6
4H0-110 - Hyperion Essbase 6 Certification
GB0-180 - Huawei Certified Network Engineer
HP2-005 - HP ProLiant Server Maintenance
HP0-891 - Implementing HP XP1024/128 Array Solution Fundamentals
HP0-815 - Advanced SAN Architecture
HP0-803 - Implementing MSA Storage Solutions
HP0-795 - RE's ProLiant Systems Management
HP0-794 - Implementing Windows Server 2003 on HP ProLiant Cluster Solutions
HP0-790 - HP ProCurve Routing Switch Essentials v5.21
HP0-773 - Installing & Supporting Standard HP SAN Environments
HP0-759 - HP ProCurve Combined Security and Mobility
HP0-756 - HP ProCurve Secure Mobility Solutions
HP0-728 - Replication Solutions for HP StorageWorks EVA
HP0-714 - OpenView Storage Area Manager Fundamentals
HP0-683 - Implementing HP ProLiant Servers
HP0-648 - ProCurve Adaptive Edge Fundamentals
HP0-645 - Implementing HP ProLiant Servers
HP0-402 - Implementing HP Enterprise Virtual Array Solutions
HP0-310 - HP OpenView Performance Insight (OVPI)
HP0-302 - Planning and Designing HP Superdome Server Solutions
HP0-281 - HP Superdome Configuration for Technical Consultants - Multi-OS
HP0-264 - Servicing HP Monochrome LaserJet Printers, High-End
HP0-216 - Enterprise Systems Management
HP0-093 - HP-UX High Availability
HP0-092 - HP-UX Advanced System Administration
HP0-091 - HP-UX System Administration
HP0-087 - Planning and Designing HP Enterprise Solutions
QQ0-100 - Microsoft Windows Server 2003 Network Infrastructure (Study Guide, Concept & Labs)
EW0-300 - Extreme Networks Specialist
EX0-100 - ITIL Foundation Certificate in IT Service Management
EE0-502 - BIG-IP Advanced
EE0-425 - Packeteer PacketShaper 6
EE0-011 - ATG Certified Relationship Management Developer
E20-580 - Storage Management Specialist Exam
E20-540 - Networked Storage - NAS Specialist Exam





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