Spectrum United States
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Voip Termination ISP
- H.323 VoIP Gateway
- SIP VoIP Gateway
- Termination
- Quintum
- Billing system of own development
- 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.
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