IBM Telecom Industry Solutions
- Hardware and software solutions by IBM including an integrated customer care, billing and provisioning system for telcommunications service providers. Product information, FAQ, and case studies.
- http://www-03.ibm.com/industries/telecom/

Mer Telemanagement Solutions Ltd.
- Develops Windows and web based call management systems for enterprise-wide voice networks.
- http://www.mtsint.com/

Volubill
- Enables prepaid and postpaid charging for mobile and wireless data and MMS content.
- http://www.volubill.com

Open International
- Customer care, billing and provisioning software for telcommunications and utilities companies.
- http://openinternational.com/

Convergys
- Integrated billing and customer care services, and employee care services.
- http://www.aistelecom.com/

Veramark Technologies
- Provider of enterprise communications management software including network billing and cost control, Internet accounting, and telemanagement. Company and product information, case studies, industry links, and a technical glossary.
- http://www.veramark.com

Telution, L.L.C.
- A provider of integrated customer care, billing and order management solutions for communications providers.
- http://www.telution.com/

TeleCount Telemanagement Systems
- Call accounting and telemanagement systems with features such as toll fraud, traffic analysis, hospitality, data collection, and billing. Getting started guide, updates, 45 day evaluation.
- http://www.telecount.com

Sigma Systems Group
- End-to-end customer care & billing. OSS telecom solutions.
- http://www.sigma-systems.com/

Sandy Beaches Software
- Providing billing, customer service and management software to telecommunications companies.
- http://www.intelebill.com/

Ryder Systems Ltd.
- Software which presents billing information in easily understood formats, ranging from colour printed analysis reports to individual billing data over the Internet.
- http://www.ryder.co.uk

Radio Television International
- Computer software for radio and television traffic, logging and billing.
- http://rti.tvheaven.com/

OpenCon Communication Systems
- Providing software solutions, including GR-303 and billing mediation, to the telecommunications industry.
- http://www.opencon.com/

MaxBill CRM and Billing
- Customer relationship management (CRM) and billing software supporting electronic bill presentment and payment (EBPP), customer self care and eCRM for service providers such as ISP, ASP, wireless, CLEC, PTT, utilities. Company and product information.
- http://www.maxbill.com/

Infozech Software Pvt. Ltd.
- Provider of telecommunications billing and web based customer care solutions.
- http://www.infozech.com/

Hansen Corporation
- Supplier of billing solutions to the world's telecommunications and utility providers.
- http://www.hancorp.com.au/

Ascent Telecom
- Offering customer care and billing software.
- http://www.ascenttelecom.com/

Amdocs Ltd
- Customer care, billing and order management systems for telecommunications carriers and Internet services providers.
- http://www.amdocs.com/