Axcesscode The standard market reference tool for international calling codes and dialing plans with code breakouts for country, city, area, mobile, and cellular. http://www.axcesscode.com/

Telephone Installers A regionalized listing of telephone equipment installers. Find a phone installer in your area. http://www.sundance-communications.com/installers/

Area Codes and Country Guides Complete listing of country, city and area phone codes. http://www.justphonecards.com/travel/countrycode/country/list.html

TelcomPrice.com Online informational resource for telephone systems, voicemail, computers, servers, video equipment, telephony products and services. http://www.telcomprice.com/

LIDO Telecom WebCentral Searchable telecommunications Web directory. http://www.telecomwebcentral.com/

Business.com: Telecommunications A comprehensive directory of telecommunication businesses and resources. http://www.business.com/directory/telecommunications/

Telephony World On-line directory to assist in computer telephony and communications procurement. http://www.telephonyworld.com/

TelephonyIndex Comprehensive resource for locating interactive voice response, call center and computer telephony products. http://www.telephonyindex.co.uk/

GeoPhones.com Telecommunications portal covering topics including internet telephony and wireless technology. http://www.geophones.com/

The Telecom Network Telecom resources for Interconnects. http://www.telecomnetwork.net/

Telecom Information Resources Information sources relating to the technical, economic, public policy, and social aspects of telecommunications. Covering all forms of telecommunications. http://china.si.umich.edu/telecom/telecom-info.html

Goodmans Book Marks Web directory, organised into sections covering news, resources, vendors, US telecom, international, wireless, internet telephony, software and books. http://www.gbmarks.com/

Telecoms Virtual Library Catalogue of links to sites relevant to the telecommunications industry from Analysys Ltd., a European independent telecommunications consultancy. http://www.analysys.co.uk/vlib/

Data Center Exchange Database of data centers, colocation facilities and telecomunications sites with space available for sale or lease. Compare specifications for power, connectivity, and space. http://www.datacenterexchange.com

World Search Dial Codes Contains telephone codes and time zone information. http://iptop.net/eng/code.html

CablingAssist A directory for the telecommunications industry. http://www.cablingassist.com/

CSG Systems International, Inc. Provides software and support services which automate customer management functions such as billing, order processing, invoice calculation and customer analysis for target marketing in the communications markets. (Nasdaq: CSGS). http://www.csgsys.com/