- Amdocs Ltd.
- Offers customer care and billing services for telecommunications carriers and network service providers.
- Evolving Systems
- Global supplier of OSS software and services for communications providers. Includes market-leading solutions for activation, number portability, number management and Telco OSS with mediation.
- IBM Telecom Solutions
- Provides telecommunications solutions such as CRM, billing, ERP and supply chain management.
- ISI: Telecommunications Management
- Full-service telecom solutions company offering call accounting systems, cost management software and consultant services that help manage costs, improve productivity and increase revenue.
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