tpcall China
- A-Z Termination
- Audio Codec’s: G.729, G.711
- voipswitch
- Billing system of own development
This function blocks all telephone calls going out of the country, thus, insuring in a case of undesirable international calls.
Citel Technologies Inc.
Citel''s Portico TVA enables organizations to deliver high-value Voice over IP features and applications to digital and analog PBX telephones already working and in place over existing infrastructure. Enterprises avoid the need for expensive network asses
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