A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
The service offered by telephone companies allowing creating the telephone numbers on the same line where the existing number is. The call tone for every number will be different from another. There is also an opportunity to program a custom ring tone for the incoming call.
PC Tone Technology Co.
PC-Tone is a leading provider of high quality PC2PC and PC2Phone solutions for customers around the world. Companies ranging from carriers to hardware manufacturers can quickly set up their own VOIP services with minimum investment. By leveraging PC-Tone`
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