Skip to main content

Humanities, Social Science and Language


Digital Products


Connect®
Course management and student learning tools backed by great support.

McGraw Hill GO
Greenlight learning with the new eBook+

ALEKS®
Personalize learning and assessment

ALEKS® Placement, Preparation, and Learning
Achieve accurate math placement

SIMnet
Ignite mastery of MS Office and IT skills

McGraw Hill eBook & ReadAnywhere App
Get learning that fits anytime, anywhere

Sharpen: Study App
A reliable study app for students

Virtual Labs
Flexible, realistic science simulations

AI Reader
Encourage Discovery, Boost Understanding

Services


Affordable Access
Reduce costs and increase success

Learning Management System Integration
Log in and sync up

Content Collections powered by Create®
Curate and deliver your ideal content

Custom Courseware Solutions
Teach your course your way

Education for All
Let’s build a future where every student has a chance to succeed

Business Program
Explore business learning solutions & resources

Professional Services
Collaborate to optimize outcomes

Remote Proctoring
Validate online exams even offsite

Institutional Solutions
Increase engagement, lower costs, and improve access for your students

Evergreen
Updated, relevant materials—without the hassle.

Support


General Help & Support Info
Customer Service & Tech Support contact information

Online Technical Support Center
FAQs, articles, chat, email or phone support

Support At Every Step
Instructor tools, training and resources for ALEKS, Connect & SIMnet

Instructor Sample Requests
Get step by step instructions for requesting an evaluation, exam, or desk copy

Platform System Check
System status in real time

PBX Systems for IP Telephony

ISBN10: 0071375686 | ISBN13: 9780071375689

PBX Systems for IP Telephony
ISBN10: 0071375686
ISBN13: 9780071375689
By Allan Sulkin

Enterprise Communications Systems Today

Evolution of the Digital PBX, 1975-2000

PBX Call Processing Design

PBX Switch Network Design

PBX Traffic Engineering Analysis

PBX Common Equipment

Introduction to IP-PBX Systems

VoIP Standards and Specifications

Converged IP-PBX System Design

Client/Server IP-PBX System Design

LAN/WAN Design Guidelines for VoIP

PBX Cabling Guidelines

PBX Voice Terminals

PBX Networking

PBX Systems Management and Administration

Appendix 1: Call Processing Feature/Function Glossary

Appendix 2: PBX Cost and Pricing Issues

Appendix 3: An IP-PBX RFP Example

Appendix 4: PBX System Feature & Function Matrices

Need support?   We're here to help - Get real-world support and resources every step of the way.

Top