A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
Some telephones, depending on the brand and model, have the intercom function, which allows to begin communication by sending the signal. When the signal comes, the telephone set rings a signal different from the standard ring tone call. After that the telephone temporarily switches off from the telephone line and works as an intercom.
Stage 2 Carrier Services
Stage 2 Networks brings together a group of telecom professionals with more than 75 years of telecom industry experience. At the heart of the Stage 2 philosophy is the deep-seated belief that businesses deserve much more than boilerplate solutions, that c
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