With easy-installation for end users and easy-provision / maintenance for Internet service providers (ISP) and System Integrators (SI), VoIP supplementary devices help ISPs and SIs to be
time-to-market for providing VoIP services to users.
For example, VigorTalk ATA-24 is a VoIP Gateway and it provides large VoIP ports which are designed for ISP/SI. Also, VigorTalk Analog Telephone Adapter (ATA) can help customers to migrate from
legacy analog telephones and conference speakerphones to modern IP devices.