A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
Developed by Edgewater Networks EdgeMarc 250 Series Enterprise Session Border Controller is providing support for SIP trunking and hosted PBX Services.
Callcentric
Callcentric is a service that lets you make free phone calls to other Callcentric members and to traditional phones world wide at great rates. Callcentric uses your internet connection and software on your computer or a telephone adapter to place calls us
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