IPsky United States
- International VoIP Wholesale Provider
- Phone To Phone
- Quintum
- Billing system of own development
Asterisk 1.6 emerged with the several features of version 1.2 and 1.4, and also it features new dial plan functions. Further is the list of the recent updates on functionality changes.
PacTel Corporation
Wholesale voice services provider, which utilizes a VoIP, and TDM switching facility to route calls internationally.
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