For one time advertising promotions or typical requests it is easier to use services of the outsourced call center. Main advantage of such a service is that the company who rents it is free from the necessity of keeping the operators and organizing their work flow.
Tenemos la mejor opcion en termanacion mayorista para todo el mundo, plataformas asterisk , voipswitch.
We have the best option in termanacion wholesaler for worldwide platforms asterisk, voipswitch.