A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
The function allows the user by entering a 5-digit number to receive a call from any concrete company’s telephone. There are no definite groups for picking up the call. One can pick up the call from any telephone set; it is only necessary to enter the required code and the extension number of the phone, which has to be picked up.
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