A2Z Trading A.G. Switzerland
- International VoIP Wholesale Provider
- H.323 VoIP Gateway
- Clarent
- Custom Open Source Billing Solution
The service for determining from which number a client has called. This helps to decide how to answer on the incoming call. A telephone company sends DNIS number to the telephone client’s system during establishing connection. As a rule, DNIS number consists from 4 to 10 digits.
Universal Phone Systems, Inc.
Our mission is to provide the world with quality service, the best alternatives of communication, at a regional, national or international level, "THE OPTION FOR COMMUNICATIONS".Universal Phone Systems, Inc., was founded with the goal to implement differe
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