InterGlobe Communications

Public IP Address Notifier
Speed Test
Telephone Country Code List (Wikipedia)
Country Dialing Plans (technical)

Using Headsets with Polycom Phones
Using an Electronic Hookswitch (EHS) with Polycom Phones
Resetting SoundPoint IP and VVX phones
Supported USB Headsets for VVX 500

VVX 1500: Hardware Setup Guide | Quick Start Guide | Full User Guide
VVX 500, VVX 600, and VVX Camera: Hardware Setup Guide | Quick Start Guide | Full User Guide
VVX 400 and VVX 410: Hardware Setup Guide | Quick Start Guide | Full User Guide
VVX 300 and VVX 310: Hardware Setup Guide | Quick Start Guide | Full User Guide

SoundPoint IP 650: Hardware Setup Guide | Quick Start Guide | Full User Guide
SoundPoint IP 550/560: Hardware Setup Guide | Quick Start Guide | Full User Guide
SoundPoint IP 32x/33x: Hardware Setup Guide | Quick Start Guide | Full User Guide

InterGlobe Communications Root CA

Viking CPA-7B Paging Unit
Viking PA-15 Paging Unit