Tele Express XII United States
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- E1 Bulk Wholeseller
- H.323 Softswitch & CPE
- SIP Softswitch & CPE
- Cisco Systems
- Mera
- ixc
- Proprietary
The system of Classes of Service (COS) helps defining rights for one or another extension in the PBX or Centrex systems. For example, few groups require more space for storing voice messages, while other need the redirection of calls to cell phones, the third does not have to make calls outside of the office network. With the help of this system one can change and configure settings.
Telecal Telecommunications Corp.
Telecall guarantees all types of carrier customers expanded reach, capacity, and quality. Telecall is a reliable partner to Carriers that need to deliver competitively priced connectivity around the globe.
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